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SAN YONG SEAL O-RING SEAL PRODUCT BROCHURE
SOURCE FACTORY/TOP-QUALITY SEALING
河北三永新材料科技有限公司Hebei Sanyong New Materials Technology Co., LTd.
Company Profile >>>
Hebei Sanyong New Materials Technology Co.,LTDocated in Wencheng Development Zone,Jing County,HengshuiCity,HebeiProvince,ithasamodernproductionbase coveringanareaofl2o square meters.With25yearsof industryexperience inthesealingparts field,ithas developed intoatrusted sealing parts production and customization service provider for global customers.
The company focuseson the core business of sealing parts.Its products are sold farand wide in the global market andare widelyused inkey industrial fieldssuchasvalves,metallrgy,petrochemicals,and mechanical parts.Themain products includevalvesealingparts,specialsealingparts formetalurgy,corosion-resistantsealingpartsforpetrochemicals, mechanical partssealingparts,as wellasaseriesofproductssuchas CNC numericalcontrolcutingplates,inflatable sealing rings,and fabric-reinforced diaphragms.
Thecompany strictlyadheres to international standards and has successfully passed ISO9ool quality management systemcertifcation,CEcertiication,OHSertificationndFAcertiicaion,stablsingafull-processaaded quality control system.Relyingon itsown production factory,allprocesses fromraw material selectionto finished product inspection are carried out Strictstandards ensure stable and reliable product quality,meeting international environmental protection and safety requirements.We have the ability to respond quickly to in-stock situations. It can efficiently meet the urgent supply demands of customers.At the same time,we are deeply engaged in customized services.Our professional team will precisely optimize solutions basedon the specific working conditions of
customers,providing highly adaptable and high-performance sealing solutions for various complex mechanical scenarios. This helps global customers enhance the operational efficiency and safety stability of their equipment and smoothly navigate the international market.
1.Westrive for excellence in quality inspection throughout the entire process 2. Strict quality control leadstoexcellence 3. Detail control and qualitytraceability 4.Internationalcertification ensuresimpeccablequality 5. Strive for excellence; everypieceisamasterpiece
1. Technology-driven and innovation-led
2.Continuouslyresearchand develop,iterateandupgrade
3.Craftsmanshipandinnovation empowerthefuture
4.Break through technical barriersandleadthe industrybenchmark
5.Customized innovation tomeetdiverseneeds
1.Honesty is the foundation, and we fulfill our promises andkeepourword 2.Treateachothersincerely andachievewin-win development 3.Remainsteadfastinour originalaspirationand establish ourbusinesswith integrity 4.Keeppromisesandliveuptotrust 5. Honest operation builds brandreputation
Corporate philosophy >>>
Core values
Honesty as the foundationInnovation as the soul Quality as the foundation Win-win is the way.
Corporate mission
Empower industrial upgrading with professional sealing technologyand provide safe and reliable sealing solutions for global customers.
Business Vision
To become an internationally leading expert in customizingsealsand createabenchmarkbrand ofhigh qualityandhigh reliabilityin theindustry
QUALIFICATIONCERTIFICATE
O-RING SEAL
Excellent sealing Easy to install Rich in materials Strong adaptability
Hebei Sanyong New Materials Technology Co., LTd.
O-RING SEAL
| Name | O-RingSeal |
| Brand | Sanyong 三永科技 |
| Specification For details,please refer to the specification sheet. | |
| ChineseNational Standard:GB/T3452.1-2005 GB/T1235-76 | |
| Enforce standards | Internationalstandard:ISO3601 |
| American standard:SAE AS 568 German standard:DIN3771 Japanese standard:JISB2401 | |
| Material | （NBR）、（FKM）、（VMQ）、（EPDM）、（FFKM）、（HNBR）、（FVMQ）、 CoveringPTFE、（PU）、（AFLAS）、（ACM）、Spraying（PTFE）、（PTFE） |
| Features | It features a simple structure，reliable sealing，convenient installation，low cost，and is suitable for multiple media and temperature and pressure scenarios.It has a wide range of applications and iseasy tomaintain. |
| field | Application Mechanical manufacturing，automotive industry，electronic and electrical appliances, aerospace，petrochemicals，medicaldevices，etc. |
Demonstration of O-ring size measurement
Please measure with a vernier caliper
Outerdiameter \ c = wirediameter ^ + innerdiameter ^ + wirediameter
Warm reminder：Thenormal tolerance for the innerandouterdiameters of O-rings is ± 0 . 1 \mathbf { M } \mathbf { M } . ,andforwirediameters,itis ± \mathbf { 0 . 0 5 M M }
PHYSICALPROPERTIES
| Material | Characteristics | Sealing type | Temperature iC) | Shore a |
| (NBR) | It has good corrosion resistance and oil resistance，and excellent elasticity | Static/Dynamic (axial reciprocation,rotation） | -40~120 | 60~95 |
| (FKM) | It has good corrosion and oil resistance, can withstand high temperaturesand isanti-aging | Static/Dynamic (Medium and high-speed rotation,reciprocating) | -20~260 | 60~90 |
| (vMQ) | It has average oil resistance，good heat resistance， good softness and ozone resistance | Static as the main focus (Low-speed reciprocating) | -60~300 | 30~85 |
| (EPDM) | It has excellentanti-aging,acidand alkalicorrosion resistance, weather resistance and ozone resistance | Static/Dynamic (Low-pressure reciprocating, rotating) | -50~150 | 50~90 |
| （HNBR） | Its oil resistance,high-temperature resistance and wear resistance are superior to those of ordinary nitrile | Static/Dynamic (High-speed reciprocating, rotating) | -40~150 | 55~90 |
| (FVMQ) | Combiningtheadvantagesof silicone rubberand fluorine rubber，itis resistantto highand low temperatures aswellaschemical corrosion | Static/Dynamic (Mediumand low speed reciprocating) | -60~260 | 45~80 |
| It features high chemical stability and （AFLAS） high-temperature resistance，as well as excellent steam resistance | Static/Dynamic (Medium-pressure reciprocating,rotating) | -20~260 | 60~90 | |
| (FFKM) | Top-notchchemical resistanceand high-temperatureresistance,suitable forharshworkingconditions | Static/Dynamic (Extreme working conditions:reciprocatingand | -20~320 | 60~90 |
| (ACM) | It has good oil resistance，heat resistance， excellent weather resistance,but average cold resistance | Static/Dynamic (Medium-temperature and low-pressure reciprocating) | -15~170 | 60~90 |
| Spraying (PTFE) | Thebasematerialiselasticandthe PTFEsurfaceiscorrosion-resistant, withanextremely lowcoefficient of friction | Static/Dynamic (Low-friction scenarios required) | -60~260 | 30~95 |
| Covering PTFE | The core elastomer + PTFE coating layer is corrosion-resistant and retains elasticity | Static/Dynamic (Medium and low pressure corrosion resistance scenarios） | -50~260 | 55~65 Shao's D |
| (PTFE) | -200~260 | 55~6D | ||
| (PU) | tear strength and good oil resistance. It has strong compressive and extrusion resistance,as well as excellent elasticity and elongation | Dynamic sealing is mainlyused (high-pressure reciprocating, frequent movement) | -35~100 | 80~95 |
An overview of O-rings
O-ringsprovide cost-effective sealing elements fordesigners to create various static or dynamic seals.The low production cost and ease of use have made O-rings one of the most widely used sealing elements.Due to the wide range of application environments of synthetic rubber,O-rings can almost be used in the sealing applications of all liquid and gas media.O-rings are vulcanized and formed in molds.Their characteristic is that the cross-section is circular and the overall shape is ring-shaped. The size specification of O-rings is indicated by:inner diameter x wire diameter (as shown in Figure 1)
Sealingmechanism
AnO-ringisabidirectioalsealingelement.TheinitalcompresionamountoftheOringintheradialoraxialdirectionduring installtiondeterminestheinitialsealingcapacityoftheO-ring.TheforceexertedbythesystempressreontheO-ringisthe sealing capacity of the O-ring.Within acertain range,it increases as the system pressure rises.
O-ring size markingand tolerance standard table
GB3452.1-92 GB1235-76
| Diameter(mm) | Tolerance(±) (mm) | Wirediameter(mm) | Tolerance (±) (mm) |
| d | CS | ||
| 0.00-1.79 | ±0.10 | 0.00-1.79 | ±0.07 |
| 1.80-6.29 | ±0.13 | 1.80-2.64 | ±0.08 |
| 6.30-10.59 | ±0.14 | 2.65-3.54 | ±0.09 |
| 10.60-18.99 | ±0.17 | 3.55-5.29 | ±1.10 |
| 19.00-31.49 | ±0.22 | 5.30-6.99 | ±0.13 |
| 31.50-41.19 | ±0.30 | 7.00-8.00 | ±0.15 |
| 41.20-51.49 | ±0.36 | 8.01-10.00 | ±0.20 |
| 51.50-64.99 | ±0.44 | ||
| 65.00-82.49 | ±0.53 | ||
| 82.50-121.99 | ±0.65 | ||
| 122.00-184.99 | ±0.90 | ||
| 185.00-257.99 | ±1.20 | ||
| 258.00-324.99 | ±1.60 | ||
| 325.00-411.99 | ±2.10 | ||
| 412.00-514.99 | ±2.60 | ||
| 515.00-649.99 | ±3.20 | ||
| 650.00-670.00 | ±4.00 | ||
| 670.01-999.00 | ±5.00 | ||
| 999.01-1200.00 | ±6.00 |
RECOMMENDED GROOVEDESIGN FOR O-RING
| Crtison W | Radial arrangement | Axial arrangement | Chamfering radius | |||||
| Groove depth | Groovewidth | Gropth | Groote | |||||
| Dynamic seal | Static seal | b1+0.2b2+0.2b3+0.2 | h+0.05 | b4+0.2 | r1 | |||
| t1+0.05 2.40 | t+0.05 2.10 | 3.70 | 5.10 | 6.50 | 2.10 | 3.90 | 0.60 | |
| 2.80 2.95 | 2.50 | 2.20 | 3.90 | 5.30 | 6.70 | 2.20 | 4.00 | 0.60 |
| 2.92 3.00 | 2.60 | 2.30 | 4.00 | 5.40 | 6.80 | 2.30 | 4.00 | 0.60 |
| 3.10 | 2.70 | 2.40 | 4.10 | 5.50 | 6.90 | 2.40 | 4.10 | 0.60 |
| 3.50 | 3.05 | 2.65 | 4.60 | 6.00 | 7.40 | 2.65 | 4. 70 | 0.60 |
| 3.533.55 | 3.10 | 2.70 | 4.80 | 6.20 | 7.60 | 2.70 | 5.00 | 0.80 |
| 3.60 | 3.15 | 2.80 | 4.80 | 6.20 | 7.60 | 2.80 | 5.10 | 0.80 |
| 4.00 | 3.50 | 3.10 | 5.20 | 6.90 | 8.60 | 3.10 | 5.30 | 0.80 |
| 4.50 | 4.00 | 3.50 | 5.80 | 7.50 | 9.20 | 3.50 | 5.90 | 0.80 |
| 5.00 | 4.40 | 4.00 | 6.60 | 8.30 | 10.20 | 4.00 | 6.70 | 0.80 |
| 5.335.30 | 4.70 | 4.30 | 7.10 | 8.80 | 10.50 | 4.30 | 7.30 | 1.20 |
| 5.50 | 4.80 | 4.50 | 7.10 | 8.80 | 10.50 | 4.50 | 7.30 | 1.20 |
| 5.70 | 5.00 | 4.60 | 7.20 | 8.90 | 10.60 | 4.60 | 7.40 | 1.20 |
| 6.00 | 5.30 | 4.90 | 7.40 | 9.10 | 10.80 | 4.90 | 7.60 | 1.20 |
| 6.50 | 5.70 | 5.40 | 8.00 | 9.70 | 11.40 | 5.40 | 8.20 | 1.20 |
| 6.997.00 | 6.10 | 9.50 | 14.50 | 5.80 | 9.70 | |||
| 7.50 | 6.60 | 5.80 6.30 | 9.70 | 12.00 12.20 | 14.70 | 6.30 | 9.90 | 1.50 1.50 |
| 8.00 | 7.10 | 6.70 | 9.80 | 12.30 | 14.80 | 6.70 | 10.00 | 1.50 |
| 8.40 | 7.50 | 7.10 | 10.00 | 12.50 | 15.00 | 7.10 | 10.30 | 1.50 |
| 9.00 | 8.10 | 7.70 | 10.60 | 13.10 | 15.60 | 7.70 | 10.90 | 2.00 |
| 9.50 | 8.60 | 8.20 | 11.00 | 13.50 | 16.00 | 8.20 | 11.40 | 2.00 |
| 10.00 | 9.10 | 8.60 | 11.60 | 14.10 | 16.60 | 8.60 | 12.00 | 2.50 |
| 12.00 | 11.00 | 10.60 | 13.50 | 16.00 | 18.50 | 10.60 | 14.00 | 2.50 |
O-RING SIZE
| Chinese National Standard: Old national standard GB/T 1235-76 | |||||||
| OD*CS-1 | 52×1 | 30 ×1.5 | 82×1.5 | 33×1.9 | 64X1.9 | 175×1.9 | 29 ×2.4 |
| 3×1 | 54×1 | 31×1.5 | 85×1.5 | 34X1.9 | 65×1.9 | 180 ×1.9 | 30 × 2.4 |
| 4X1 | 64X1 | 32×1.5 | OD*CS-1.9 | 35×1.9 | 67X1.9 | 185×1.9 | 31×2.4 |
| 5×1 | 65×1 | 33×1.5 | 5×1.9 | 36×1.9 | 68×1.9 | 190 ×1.9 | 32 × 2.4 |
| 6X1 | 82×1 | 34X1.5 | 6X1.9 | 37X1.9 | 69 X1.9 | 195X1.9 | 33 ×2.4 |
| 7×1 | OD*CS-1.5 | 35×1.5 | 7X1.9 | 38×1.9 | 70×1.9 | 200 X1.9 | 34×2.4 |
| 8×1 | 5×1.5 | 36X1.5 | 8×1.9 | 39×1.9 | 71×1.9 | 210 ×1.9 | 35 ×2.4 |
| 9×1 | 6X1.5 | 37×1.5 | 9×1.9 | 40×1.9 | 72×1.9 | 220 × 1.9 | 36×2.4 |
| 10×1 | 7×1.5 | 38×1.5 | 10×1.9 | 41X1.9 | 73×1.9 | OD*CS-2. 4 | 37×2.4 |
| 11×1 | 8×1.5 | 39 X1.5 | 11×1.9 | 42 X1.9 | 74X1.9 | 7× 2.4 | 38 × 2.4 |
| 12×1 | 9×1.5 | 40×1.5 | 12×1.9 | 43×1.9 | 75X1.9 | 8×2.4 | 39 X2.4 |
| 13×1 | 10×1.5 | 41×1.5 | 13×1.9 | 44X1.9 | 77×1.9 | 9×2.4 | 40 × 2.4 |
| 14X1 | 11×1.5 | 42×1.5 | 14X1.9 | 45 ×1.9 | 80×1.9 | 10×2.4 | 41×2.4 |
| 15×1 | 12×1.5 | 43×1.5 | 15×1.9 | 46X1.9 | 85×1.9 | 11×2.4 | 42 X 2. 4 |
| 16X1 | 13×1.5 | 44X1.5 | 16X1.9 | 47 X1.9 | 90X1.9 | 12×2.4 | 43 ×2.4 |
| 17×1 | 14×1.5 | 45×1.5 | 17×1.9 | 48×1.9 | 95×1.9 | 13 ×2.4 | 44 X 2. 4 |
| 18×1 | 15×1.5 | 46X1.5 | 18×1.9 | 49X1.9 | 100 X1.9 | 14×2.4 | 45× 2.4 |
| 19×1 | 16×1.5 | 47X1.5 | 19×1.9 | 50×1.9 | 105 ×1.9 | 15×2.4 | 46 X 2. 4 |
| 20×1 | 17X1.5 | 48×1.5 | 20X1.9 | 51×1.9 | 110X1.9 | 16X2.4 | 47 X 2.4 |
| 22×1 | 18×1.5 | 49 ×1.5 | 21×1.9 | 52×1.9 | 115×1.9 | 17 ×2.4 | 48 X 2. 4 |
| 24×1 | 19×1.5 | 50×1.5 | 22 X1.9 | 53×1.9 | 120 X1.9 | 18×2.4 | 49 X 2.4 |
| 25×1 | 20×1.5 | 51×1.5 | 23×1.9 | 54×1.9 | 125 × 1.9 | 19×2.4 | 50 ×2.4 |
| 27×1 | 21×1.5 | 53×1.5 | 24×1.9 | 55 ×1.9 | 130 X1.9 | 20×2.4 | 51×2.4 |
| 28×1 | 22×1.5 | 55×1.5 | 25×1.9 | 56×1.9 | 135 ×1.9 | 21 X2.4 | 52×2.4 |
| 30×1 | 23×1.5 | 60×1.5 | 26×1.9 | 57X1.9 | 140X1.9 | 22 ×2.4 | 53×2.4 |
| 32×1 | 24×1.5 | 63×1.5 | 27 ×1.9 | 58×1.9 | 145 X 1.9 | 23×2.4 | 54×2.4 |
| 33×1 | 25×1.5 | 65 ×1.5 | 28 X1.9 | 59 X1.9 | 150 X1.9 | 24X2.4 | 55 ×2.4 |
| 38×1 | 26×1.5 | 67×1.5 | 29 ×1.9 | 60×1.9 | 155×1.9 | 25 ×2.4 | 56×2.4 |
| 40×1 | 27×1.5 | 70 X1.5 | 30 X1.9 | 61X1.9 | 160X1.9 | 26×2.4 | 57×2.4 |
| 44X1 | 28×1.5 | 75×1.5 | 31×1.9 | 62×1.9 | 165 ×1.9 | 27 ×2.4 | 58 ×2.4 |
| 46X1 | 29×1.5 | 80×1.5 | 32×1.9 | 63X1.9 | 170×1.9 | 28 ×2.4 | 59×2.4 |
O-RING SIZE
| Chinese National Standard: Old national standard GB/T 1235-76 | |||||||
| 60×2.4 | 180×2.4 | 31X3.1 | 63 X3.1 | 185×3.1 | 340×3.1 | 500×3.1 | 21×3.5 |
| 61×2.4 | 185×2.4 | 32×3.1 | 65 ×3.1 | 190 ×3.1 | 345 ×3. 1 | 510×3.1 | 22 ×3.5 |
| 62×2.4 | 190 ×2.4 | 33×3.1 | 68 X3. 1 | 195 X3. 1 | 350×3.1 | 520×3. 1 | 23 ×3.5 |
| 63×2.4 | 195 × 2.4 | 34×3. 1 | 70 ×3.1 | 200 ×3.1 | 355×3. 1 | 530 ×3.1 | 24×3.5 |
| 65×2.4 | 200 ×2.4 | 35 ×3.1 | 72 × 3. 1 | 205×3.1 | 360 ×3. 1 | 540×3.1 | 25×3.5 |
| 66X2.4 | 205×2.4 | 36×3.1 | 75 ×3.1 | 210×3.1 | 365 ×3. 1 | 550×3.1 | 26×3.5 |
| 68×2.4 | 210×2.4 | 37×3.1 | 76X3.1 | 215×3.1 | 370 ×3. 1 | 560 ×3. 1 | 27 ×3.5 |
| 70 × 2.4 | 215×2.4 | 38 ×3.1 | 78 × 3. 1 | 220 ×3. 1 | 375 ×3. 1 | 570 ×3. 1 | 28×3.5 |
| 72× 2.4 | 220 ×2.4 | 39 X3. 1 | 80 ×3. 1 | 225 ×3.1 | 380 X3. 1 | 580 ×3.1 | 29 X3.5 |
| 75 × 2.4 | OD*CS-3. 1 | 40 × 3. 1 | 85×3.1 | 230 ×3.1 | 385 ×3. 1 | 590 × 3. 1 | 30 ×3.5 |
| 76×2.4 | 10×3.1 | 41×3.1 | 88×3.1 | 235 ×3. 1 | 390 ×3. 1 | 600 ×3. 1 | 31×3.5 |
| 78 × 2.4 | 11×3.1 | 42 × 3. 1 | 90 ×3.1 | 240 ×3.1 | 395 ×3. 1 | 610×3.1 | 32 ×3.5 |
| 80×2.4 | 12×3.1 | 43 ×3.1 | 95×3.1 | 245 ×3. 1 | 400×3.1 | 620×3.1 | 33×3.5 |
| 85 ×2.4 | 13×3.1 | 44× 3. 1 | 98 ×3.1 | 250 ×3.1 | 405 ×3. 1 | 630 ×3. 1 | 34×3.5 |
| 90×2.4 | 14×3.1 | 45×3.1 | 100×3. 1 | 255×3.1 | 410×3.1 | 640 ×3.1 | 35 ×3.5 |
| 95 × 2.4 | 15×3.1 | 46X3. 1 | 105 ×3. 1 | 260 ×3.1 | 415×3.1 | 650 ×3. 1 | 36×3.5 |
| 98×2.4 | 16X3.1 | 47 ×3. 1 | 110X3. 1 | 265×3.1 | 420 ×3. 1 | 660 X 3. 1 | 37×3.5 |
| 100×2.4 | 17×3.1 | 48 X 3. 1 | 115×3.1 | 270 ×3.1 | 425×3.1 | 670 ×3.1 | 38×3.5 |
| 105 ×2.4 | 18×3.1 | 49 X3. 1 | 120×3.1 | 275 ×3.1 | 430 ×3. 1 | 680 X 3. 1 | 39×3.5 |
| 110×2.4 | 19×3.1 | 50 ×3.1 | 125 ×3. 1 | 280 ×3.1 | 435 ×3. 1 | OD*CS-3.5 | 40 ×3.5 |
| 115×2.4 | 20×3.1 | 51×3.1 | 130×3.1 | 285 ×3.1 | 440 ×3.1 | 10×3.5 | 41 ×3.5 |
| 120 × 2. 4 | 21×3.1 | 52×3.1 | 135 ×3. 1 | 290 ×3. 1 | 445 X 3. 1 | 11×3.5 | 42 ×3.5 |
| 125×2.4 | 22×3.1 | 53×3.1 | 140 ×3. 1 | 295 ×3. 1 | 450 ×3. 1 | 12×3.5 | 43 ×3.5 |
| 130 ×2.4 | 23×3.1 | 54×3.1 | 145×3. 1 | 300 ×3.1 | 455×3.1 | 13×3.5 | 44×3.5 |
| 135 ×2.4 | 24×3.1 | 55 ×3.1 | 150×3. 1 | 305×3.1 | 460 X3. 1 | 14×3.5 | 45 ×3.5 |
| 140 × 2.4 | 25×3.1 | 56×3.1 | 155×3.1 | 310×3.1 | 465 ×3. 1 | 15×3.5 | 46×3.5 |
| 150×2.4 | 26X3.1 | 57×3.1 | 160 X3. 1 | 315×3.1 | 470 ×3. 1 | 16X3.5 | 47×3.5 |
| 160×2.4 | 27×3.1 | 58×3.1 | 165 ×3. 1 | 320 ×3.1 | 475×3.1 | 17×3.5 | 48×3.5 |
| 165 ×2.4 | 28×3.1 | 59 X3.1 | 170 X3. 1 | 325 ×3. 1 | 480 X3. 1 | 18X3.5 | 49 X3.5 |
| 170 ×2.4 | 29 ×3.1 | 60 ×3.1 | 175 ×3. 1 | 330 ×3. 1 | 485 × 3. 1 | 19×3.5 | 50×3.5 |
| 175×2.4 | 30×3.1 | 62×3.1 | 180X3.1 | 335×3.1 | 490 X3. 1 | 20×3.5 | 51X3.5 |
O-RING SIZE
| ChineseNational Standard: Old national standard GB/T1235-76 | |||||||
| 52×3.5 | 140×3.5 | 310×3.5 | 480×3.5 | 655×3.5 | 33×4 | 94X4 | 255×4 |
| 53×3.5 | 145 ×3.5 | 315×3.5 | 485×3.5 | 660×3.5 | 34×4 | 95×4 | 260×4 |
| 54×3.5 | 150×3.5 | 320 ×3.5 | 490 ×3.5 | 665×3.5 | 35×4 | 98×4 | 265×4 |
| 55×3.5 | 155×3.5 | 325×3.5 | 495×3.5 | 670×3.5 | 36X4 | 100X4 | 270×4 |
| 56×3.5 | 160×3.5 | 330×3.5 | 500×3.5 | 675×3.5 | 37×4 | 105X4 | 275×4 |
| 57×3.5 | 165×3.5 | 335×3.5 | 505×3.5 | 680×3.5 | 38×4 | 110×4 | 280×4 |
| 58×3.5 | 170×3.5 | 340×3.5 | 510×3.5 | 685 ×3.5 | 40×4 | 115×4 | 285×4 |
| 59×3.5 | 175×3.5 | 345×3.5 | 520×3.5 | 690×3.5 | 41×4 | 120×4 | 290×4 |
| 60×3.5 | 180×3.5 | 350×3.5 | 525×3.5 | 695 ×3.5 | 42×4 | 125X4 | 295×4 |
| 61×3.5 | 185×3.5 | 355×3.5 | 530×3.5 | 700×3.5 | 43×4 | 130×4 | 300×4 |
| 62×3.5 | 190×3.5 | 360×3.5 | 535×3.5 | 710×3.5 | 44×4 | 135×4 | 305×4 |
| 63×3.5 | 195×3.5 | 365×3.5 | 540×3.5 | 720×3.5 | 45×4 | 140X4 | 310×4 |
| 64×3.5 | 200×3.5 | 370×3.5 | 545×3.5 | 730×3.5 | 47X4 | 145X4 | 315×4 |
| 65×3.5 | 205×3.5 | 375×3.5 | 550 ×3.5 | 740 ×3.5 | 48×4 | 150×4 | 320×4 |
| 66×3.5 | 210×3.5 | 380×3.5 | 555×3.5 | 750 ×3.5 | 50×4 | 155×4 | 325×4 |
| 67×3.5 | 215×3.5 | 385×3.5 | 560×3.5 | OD*CS-4 | 52×4 | 160X4 | 330×4 |
| 68×3.5 | 220 ×3.5 | 390 ×3.5 | 565×3.5 | 12×4 | 55×4 | 165×4 | 335×4 |
| 70×3.5 | 225×3.5 | 395×3.5 | 570×3.5 | 13×4 | 57×4 | 170×4 | 340×4 |
| 72×3.5 | 230×3.5 | 400×3.5 | 575×3.5 | 14×4 | 58×4 | 175×4 | 345×4 |
| 75×3.5 | 235×3.5 | 405 ×3.5 | 580×3.5 | 15×4 | 60×4 | 180×4 | 350×4 |
| 78×3.5 | 240×3.5 | 410×3.5 | 585×3.5 | 16×4 | 62×4 | 185×4 | 355×4 |
| 80×3.5 | 245×3.5 | 415×3.5 | 590×3.5 | 17×4 | 65×4 | 190×4 | 360×4 |
| 82×3.5 | 250×3.5 | 420×3.5 | 595×3.5 | 18×4 | 68X4 | 195×4 | 365×4 |
| 85×3.5 | 255×3.5 | 425×3.5 | 600×3.5 | 20×4 | 70×4 | 200 ×4 | 370×4 |
| 90×3.5 | 260×3.5 | 430 ×3.5 | 605×3.5 | 21X4 | 72×4 | 205×4 | 375×4 |
| 95×3.5 | 265×3.5 | 435×3.5 | 610×3.5 | 22 ×4 | 75×4 | 210×4 | 380×4 |
| 100×3.5 | 270×3.5 | 440×3.5 | 615×3.5 | 24X4 | 78×4 | 215×4 | 385×4 |
| 105×3.5 | 275×3.5 | 445 ×3.5 | 620×3.5 | 25×4 | 80×4 | 220 ×4 | 390×4 |
| 110×3.5 | 280×3.5 | 450×3.5 | 625×3.5 | 26×4 | 82×4 | 225×4 | 395×4 |
| 115×3.5 | 285×3.5 | 455×3.5 | 630×3.5 | 27 ×4 | 84X4 | 230 ×4 | 400X4 |
| 120×3.5 | 290×3.5 | 460 ×3.5 | 635×3.5 | 28×4 | 85×4 | 235×4 | 405×4 |
| 125×3.5 | 295×3.5 | 465×3.5 | 640×3.5 | 29 X4 | 88×4 | 240 X4 | 410×4 |
| 130×3.5 | 300×3.5 | 470×3.5 | 645×3.5 | 30×4 | 90×4 | 245×4 | 415×4 |
| 135×3.5 | 305×3.5 | 475×3.5 | 650 ×3.5 | 32×4 | 92×4 | 250 ×4 | 420 ×4 |
O-RING SIZE
| Chinese National Standard: Old national standard GB/T 1235-76 | |||||||
| 425×4 | 700X4 | 22×5 | 140×5 | 310×5 | 485×5 | 800×5 | 165×5.7 |
| 430 ×4 | 710×4 | 25×5 | 145×5 | 315×5 | 490×5 | OD*CS-5.7 | 170 ×5.7 |
| 435×4 | 720×4 | 26×5 | 150×5 | 320×5 | 495×5 | 30×5.7 | 175×5.7 |
| 440 × 4 | 730 X4 | 28×5 | 155×5 | 325×5 | 500×5 | 35×5.7 | 180×5.7 |
| 445X4 | 740×4 | 30×5 | 160×5 | 330×5 | 510×5 | 40×5.7 | 185×5.7 |
| 450 X4 | 750 ×4 | 32×5 | 165×5 | 335×5 | 520×5 | 45 ×5.7 | 190×5.7 |
| 455×4 | 760×4 | 35×5 | 170×5 | 340×5 | 525×5 | 50 ×5.7 | 195×5.7 |
| 460 X4 | 770 ×4 | 36×5 | 175×5 | 345×5 | 530×5 | 52×5.7 | 200×5.7 |
| 465×4 | 780X4 | 38×5 | 180×5 | 350×5 | 540×5 | 55×5.7 | 205×5.7 |
| 470×4 | 790 X4 | 40×5 | 185×5 | 355×5 | 550×5 | 60×5.7 | 210×5.7 |
| 475×4 | 800×4 | 42×5 | 190×5 | 360×5 | 560×5 | 65×5.7 | 215×5.7 |
| 480 ×4 | 810×4 | 45×5 | 195×5 | 365×5 | 570×5 | 70×5.7 | 220 ×5.7 |
| 485×4 | 820×4 | 48×5 | 200×5 | 370×5 | 580×5 | 73×5.7 | 225×5.7 |
| 490 X4 | 830×4 | 50×5 | 205×5 | 375×5 | 590×5 | 75×5.7 | 230×5.7 |
| 495×4 | 840X4 | 52×5 | 210×5 | 380×5 | 600×5 | 78×5.7 | 235×5.7 |
| 500×4 | 850×4 | 55×5 | 215×5 | 385×5 | 610×5 | 80×5.7 | 240 ×5.7 |
| 510×4 | 860×4 | 58×5 | 220×5 | 390×5 | 620×5 | 82×5.7 | 245×5.7 |
| 520×4 | 870×4 | 60×5 | 225×5 | 395×5 | 630×5 | 85×5.7 | 250 ×5.7 |
| 530×4 | 880×4 | 65×5 | 230×5 | 400×5 | 640×5 | 88×5.7 | 255×5.7 |
| 540×4 | 890×4 | 67×5 | 235×5 | 405×5 | 650×5 | 90×5.7 | 260×5.7 |
| 550×4 | 900X4 | 70×5 | 240×5 | 410×5 | 660×5 | 95 ×5.7 | 265×5.7 |
| 560×4 | 910X4 | 75×5 | 245×5 | 415×5 | 670×5 | 100×5.7 | 270×5.7 |
| 570×4 | 920×4 | 80×5 | 250×5 | 420×5 | 680×5 | 105×5.7 | 275×5.7 |
| 580×4 | 930×4 | 85×5 | 255×5 | 425×5 | 690×5 | 110×5.7 | 280 ×5.7 |
| 590X4 | 940×4 | 90×5 | 260×5 | 430×5 | 700×5 | 115×5.7 | 285×5.7 |
| 600×4 | 950 ×4 | 95×5 | 265×5 | 435×5 | 710×5 | 120×5.7 | 290 ×5.7 |
| 610X4 | 960×4 | 100×5 | 270×5 | 440×5 | 720×5 | 125×5.7 | 295×5.7 |
| 620×4 | 970 ×4 | 105×5 | 275×5 | 445×5 | 730×5 | 130 ×5.7 | 300 ×5.7 |
| 630×4 | 980X4 | 110×5 | 280×5 | 450×5 | 740×5 | 135×5.7 | 305×5.7 |
| 650×4 | 990X4 | 115×5 | 285×5 | 455×5 | 750×5 | 140×5.7 | 310×5.7 |
| 660X4 | 1000×4 | 120×5 | 290×5 | 460×5 | 760×5 | 145×5.7 | 315×5.7 |
| 670×4 | OD*CS-5 | 125×5 | 295×5 | 470×5 | 770×5 | 150×5.7 | 320 ×5.7 |
| 680×4 | 18×5 | 130×5 | 300×5 | 475×5 | 780×5 | 155×5.7 | 325×5.7 |
| 690 X4 | 20×5 | 135×5 | 305×5 | 480 ×5 | 790×5 | 160×5.7 | 330 ×5.7 |
O-RING SIZE
| Chinese National Standard: Old national standard GB/T 1235-76 | |||||||
| 335×5.7 | 505×5.7 | 675×5.71000×5.7 | 190×6 | 360×6 | 530X6 | 800×6 | |
| 340 ×5.7 | 510×5.7 | 680 ×5.7 | OD*CS-6 | 195×6 | 365×6 | 535×6 | 810×6 |
| 345×5.7 | 515×5.7 | 685×5.7 | 40X6 | 200×6 | 370×6 | 540X6 | 820X6 |
| 350×5.7 | 520×5.7 | 690×5.7 | 50×6 | 205×6 | 375×6 | 545×6 | 830×6 |
| 355×5.7 | 525×5.7 | 695×5.7 | 55×6 | 210X6 | 380×6 | 550×6 | 840X6 |
| 360 ×5.7 | 530×5.7 | 700 ×5.7 | 60×6 | 215×6 | 385×6 | 555×6 | 850×6 |
| 365×5.7 | 535×5.7 | 710×5.7 | 63X6 | 220×6 | 390X6 | 560X6 | 860X6 |
| 370×5.7 | 540×5.7 | 720 ×5.7 | 65×6 | 225×6 | 395×6 | 565×6 | 870×6 |
| 375×5.7 | 545×5.7 | 730×5.7 | 67X6 | 230X6 | 400X6 | 570X6 | 880X6 |
| 380 ×5.7 | 550×5.7 | 740 ×5.7 | 70X6 | 235×6 | 405×6 | 575×6 | 890X6 |
| 385×5.7 | 555×5.7 | 750×5.7 | 75×6 | 240×6 | 410×6 | 580X6 | 900X6 |
| 390×5.7 | 560 ×5.7 | 760 ×5.7 | 80×6 | 245×6 | 415×6 | 585×6 | 910X6 |
| 395×5.7 | 565×5.7 | 770×5.7 | 85×6 | 250×6 | 420×6 | 590×6 | 920X6 |
| 400 ×5.7 | 570×5.7 | 780 ×5.7 | 90×6 | 255×6 | 425×6 | 595×6 | 930X6 |
| 405×5.7 | 575×5.7 | 790×5.7 | 95X6 | 260X6 | 430×6 | 600X6 | 940X6 |
| 410×5.7 | 580 ×5.7 | 800 ×5.7 | 100×6 | 265×6 | 435×6 | 610X6 | 950×6 |
| 415×5.7 | 585×5.7 | 810×5.7 | 105×6 | 270X6 | 440X6 | 620X6 | 960X6 |
| 420 ×5.7 | 590×5.7 | 820×5.7 | 110×6 | 275×6 | 445×6 | 630×6 | 970X6 |
| 425×5.7 | 595×5.7 | 830×5.7 | 115×6 | 280X6 | 450×6 | 640X6 | 980X6 |
| 430 ×5.7 | 600×5.7 | 840 ×5.7 | 120×6 | 285×6 | 455×6 | 650×6 | 990X6 |
| 435×5.7 | 605×5.7 | 850×5.7 | 125×6 | 290X6 | 460X6 | 660X6 | 1000×6 |
| 440 ×5.7 | 610×5.7 | 860 ×5.7 | 130×6 | 295×6 | 465X6 | 670X6 | OD*CS-8.6 |
| 445×5.7 | 615×5.7 | 870 ×5.7 | 135×6 | 300X6 | 470X6 | 680 X6 | 90 X8.6 |
| 450×5.7 | 620×5.7 | 880 ×5.7 | 140X6 | 305×6 | 475×6 | 690X6 | 95×8.6 |
| 455×5.7 | 625×5.7 | 890 ×5.7 | 145X6 | 310X6 | 480X6 | 700×6 | 100×8.6 |
| 460 ×5.7 | 630×5.7 | 900 ×5.7 | 148X6 | 315×6 | 485×6 | 710X6 | 105×8.6 |
| 465×5.7 | 635×5.7 | 910×5.7 | 150×6 | 320×6 | 490X6 | 720X6 | 110×8.6 |
| 470 ×5.7 | 640×5.7 | 920 ×5.7 | 155×6 | 325×6 | 495×6 | 730 X6 | 115×8.6 |
| 475×5.7 | 645×5.7 | 940×5.7 | 160X6 | 330×6 | 500X6 | 740X6 | 120×8.6 |
| 480 ×5.7 | 650×5.7 | 950 ×5.7 | 165×6 | 335×6 | 505×6 | 750×6 | 125×8.6 |
| 485 ×5.7 | 655×5.7 | 960 ×5.7 | 170X6 | 340×6 | 510×6 | 760X6 | 130×8.6 |
| 490 ×5.7 | 660×5.7 | 970 ×5.7 | 175×6 | 345×6 | 515×6 | 770 X 6 | 135×8.6 |
| 495×5.7 | 665×5.7 | 980×5.7 | 180X6 | 350×6 | 520×6 | 780×6 | 140×8.6 |
| 500×5.7 | 670×5.7 | 990 ×5.7 | 185×6 | 355×6 | 525×6 | 790×6 | 145×8.6 |
O-RING SIZE
| ChineseNational Standard: Old national standard GB/T1235-76 | |||||||
| 150×8.6 | 320×8.6 | 490×8.6 | 820×8.6 | 150×10 | 320×10 | 490×10 | 820×10 |
| 155×8.6 | 325×8.6 | 495×8.6 | 830×8.6 | 155×10 | 325×10 | 495×10 | 830×10 |
| 160X8.6 | 330X8.6 | 500×8.6 | 840X8.6 | 160X10 | 330 ×10 | 500×10 | 840×10 |
| 165×8.6 | 335×8.6 | 510×8.6 | 850 ×8.6 | 165×10 | 335×10 | 510×10 | 850×10 |
| 170×8.6 | 340 X8.6 | 520 X8.6 | 860 X8.6 | 170×10 | 340×10 | 520×10 | 860 X10 |
| 175×8.6 | 345×8.6 | 530 ×8.6 | 870×8.6 | 175×10 | 345×10 | 530×10 | 870×10 |
| 180×8.6 | 350×8.6 | 540×8.6 | 880×8.6 | 180×10 | 350×10 | 540×10 | 880×10 |
| 185×8.6 | 355×8.6 | 550×8.6 | 890×8.6 | 185×10 | 355×10 | 550×10 | 890×10 |
| 190X8.6 | 360×8.6 | 560×8.6 | 900X8.6 | 190X10 | 360×10 | 560×10 | 900 ×10 |
| 195×8.6 | 365×8.6 | 570×8.6 | 910×8.6 | 195×10 | 365×10 | 570×10 | 910×10 |
| 200X8.6 | 370X8.6 | 580 X8.6 | 920×8.6 | 200×10 | 370×10 | 580×10 | 920×10 |
| 205 ×8.6 | 375×8.6 | 590×8.6 | 930 ×8.6 | 205×10 | 375×10 | 590×10 | 930×10 |
| 210×8.6 | 380×8.6 | 600X8.6 | 940X8.6 | 210×10 | 380×10 | 600×10 | 940X10 |
| 215×8.6 | 385×8.6 | 610X8.6 | 950×8.6 | 215×10 | 385×10 | 610×10 | 950×10 |
| 220×8.6 | 390×8.6 | 620X8.6 | 960X8.6 | 220×10 | 390×10 | 620×10 | 960 X10 |
| 225 ×8.6 | 395×8.6 | 630×8.6 | 970 ×8.6 | 225×10 | 395×10 | 630×10 | 970 ×10 |
| 230 X8.6 | 400X8.6 | 640X8.6 | 980 X8.6 | 230×10 | 400X10 | 640X10 | 980×10 |
| 235×8.6 | 405×8.6 | 650×8.6 | 990 X8.6 | 235×10 | 405×10 | 650×10 | 990×10 |
| 240 ×8.6 | 410X8.6 | 660 X8.6 | 1000×8.6 | 240×10 | 410×10 | 660×10 | 1000×10 |
| 245 X8.6 | 415×8.6 | 670 X8.6 | 1010X8.6 | 245×10 | 415×10 | 670×10 | 1010×10 |
| 250 ×8.6 | 420×8.6 | 680 X8.6 | 1020 X8.6 | 250×10 | 420×10 | 680×10 | 1020X10 |
| 255 ×8.6 | 425 ×8.6 | 690 X8.6 | 1030 X8.6 | 255×10 | 425×10 | 690×10 | 1030×10 |
| 260X8.6 | 430X8.6 | 700 X8.6 | 1040 X8.6 | 260×10 | 430×10 | 700×10 | 1040X10 |
| 265×8.6 | 435 ×8.6 | 710×8.6 | OD*CS-10 | 265×10 | 435×10 | 710×10 | 1050×10 |
| 270×8.6 | 440×8.6 | 720X8.6 | 100×10 | 270×10 | 440×10 | 720×10 | 1060×10 |
| 275×8.6 | 445×8.6 | 730×8.6 | 105×10 | 275×10 | 445 × 10 | 730 ×10 | 1070×10 |
| 280×8.6 | 450×8.6 | 740X8.6 | 110×10 | 280×10 | 450×10 | 740×10 | 1080×10 |
| 285 ×8.6 | 455×8.6 | 750 ×8.6 | 115×10 | 285×10 | 455×10 | 750×10 | 1090×10 |
| 290X8.6 | 460X8.6 | 760 X8.6 | 120×10 | 290×10 | 460×10 | 760X10 | 1100×10 |
| 295×8.6 | 465×8.6 | 770 ×8.6 | 125×10 | 295×10 | 465×10 | 770 ×10 | 1110×10 |
| 300X8.6 | 470X8.6 | 780X8.6 | 130×10 | 300×10 | 470×10 | 780×10 | |
| 305×8.6 | 475×8.6 | 790 X8.6 | 135×10 | 305×10 | 475×10 | 790 ×10 | |
| 310×8.6 | 480X8.6 | 800×8.6 | 140×10 | 310×10 | 480×10 | 800×10 | |
| 315×8.6 | 485 X8.6 | 810X8.6 | 145 ×10 | 315×10 | 485 × 10 | 810×10 | |
O-RING SIZE
| ChineseNational Standard: Newnational standard GB/T 3452.1-2005 | ||||||
| ID*CS-1.8 | 23.6×1.8 | 10×2.65 | 41. 2×2.6597.5X2. 65 | 215×2.65 | 390 X2. 65 | |
| 2×1.8 | 25×1.8 | 10. 6X 2. 65 | 42. 3 × 2. 65 | 100 ×2. 65 | 220 X 2. 65 | 400 × 2. 65 |
| 2.8×1.8 | 25.8×1.8 | 11. 2 X 2. 65 | 43. 7 X 2. 65 | 103 ×2. 65 | 225 × 2. 65 | ID*CS-3.55 |
| 3.15×1.8 | 26.5×1.8 | 11. 8 × 2. 65 | 45 × 2. 65 | 106×2.65 | 230 × 2. 65 | 17 ×3.55 |
| 4×1.8 | 28×1.8 | 12. 5×2. 65 | 46. 2 X 2. 65 | 110×2.65 | 235 ×2. 65 | 18×3.55 |
| 4.5×1.8 | 29×1.8 | 13. 2 ×2. 65 | 47. 5 × 2. 65 | 112 ×2.65 | 240 × 2. 65 | 19 ×3.55 |
| 5×1.8 | 30X1.8 | 14×2. 65 | 48. 7×2. 65 | 115 × 2. 65 | 245 X 2. 65 | 20 ×3.55 |
| 5.3×1.8 | 31.5×1.8 | 15 × 2.65 | 50 × 2.65 | 118 ×2.65 | 250 × 2. 65 | 21.2×3.55 |
| 6X1.8 | 32.5×1.8 | 16×2.65 | 51.5×2. 65 | 120 ×2. 65 | 255 × 2. 65 | 22. 4×3.55 |
| 7×1.8 | 33.5×1.8 | 17× 2.65 | 53×2.65 | 122 × 2. 65 | 260 X 2. 65 | 23.6×3.55 |
| 7.5×1.8 | 34.5×1.8 | 18×2.65 | 54.5×2.65 | 125×2. 65 | 265 X 2. 65 | 25×3.55 |
| 8×1.8 | 35.5×1.8 | 19 × 2. 65 | 56× 2.65 | 128 × 2. 65 | 270 × 2. 65 | 25.8×3.55 |
| 8.75×1.8 | 36.5×1.8 | 20 ×2.65 | 58× 2.65 | 128.8×2. 15 | 275 × 2. 65 | 26.5×3.55 |
| 9×1.8 | 37.5×1.8 | 21. 2 × 2. 65 | 60 ×2.65 | 130 ×2.65 | 280 × 2. 65 | 28 ×3.55 |
| 9.5×1.8 | 38.7×1.8 | 22.4×2. 65 | 61. 5 ×2. 65 | 132 ×2. 65 | 282 X 2. 65 | 30 ×3.55 |
| 10×1.8 | 40×1.8 | 23. 6X2. 65 | 63 × 2.65 | 135 × 2. 65 | 285 × 2. 65 | 31.5×3.55 |
| 10.6X1.8 | 41.2X1.8 | 25×2.65 | 65× 2.65 | 140 ×2. 65 | 295 × 2. 65 | 32.5×3.55 |
| 11. 2×1.8 | 42.5×1.8 | 25.8 × 2. 65 | 67 × 2. 65 | 145 × 2. 65 | 300 × 2. 65 | 33.5×3.55 |
| 11.4×1.8 | 43.7X1.8 | 26.5×2.65 | 69X2.65 | 150 ×2. 65 | 305 × 2. 65 | 34.5×3.55 |
| 11.8×1.8 | 45×1.8 | 28 × 2.65 | 71 X 2. 65 | 155 × 2. 65 | 310 × 2.65 | 35.5×3.55 |
| 12.5×1.8 | 46.2X1.8 | 29 X 2. 65 | 73×2. 65 | 160 X2. 65 | 315×2.65 | 36.5×3.55 |
| 13.2×1.8 | 47.2X 1.8 | 30 × 2. 65 | 75 × 2. 65 | 165 × 2. 65 | 320 × 2. 65 | 37.5 ×3.55 |
| 14×1.8 | 48.7×1.8 | 31.5×2. 65 | 77. 5 × 2. 65 | 170 ×2. 65 | 325 × 2. 65 | 38.7×3.55 |
| 15×1.8 | 50×1.8 | 32. 5 × 2. 65 | 80 ×2.65 | 175 × 2. 65 | 330 × 2. 65 | 40×3.55 |
| 16×1.8 | ID*CS-2. 65 | 33.5×2. 65 | 82.5×2. 65 | 180 × 2. 65 | 335 ×2. 65 | 41. 2×3.55 |
| 17×1.8 | 7. 1× 2. 65 | 34. 5 × 2. 65 | 85×2.65 | 185 ×2.65 | 340 × 2. 65 | 42. 3 × 3. 55 |
| 18×1.8 | 7. 6×2. 65 | 35.5×2. 65 | 87.5 ×2. 65 | 190 X 2. 65 | 345 × 2. 65 | 43.7×3.55 |
| 19×1.8 | 8× 2.65 | 36. 5 X 2. 65 | 90 × 2. 65 | 195 × 2. 65 | 350 × 2. 65 | 45 ×3.55 |
| 20×1.8 | 8.5×2.35 | 37. 5 X 2. 65 | 92. 5 ×2. 65 | 200 X 2.65 | 360 X 2. 65 | 46. 2X3.55 |
| 21.2×1.8 | 9×2.65 | 38. 7 X 2. 65 | 92.8×2.15 | 208 × 2. 65 | 370 × 2. 65 | 47.5× 3. 55 |
| 22.4X1.8 | 9.5×2. 65 | 40 X 2.65 | 95 ×2.65 | 212 X 2. 65 | 380 × 2. 65 | 48.7×3.55 |
O-RING SIZE
| Chinese National Standard: New national standard GB/T 3452.1-2005 | ||||||
| 50×3.55 | 118×3.55 | 245 ×3.55 | 51.5×5.3 | 125×5.3 | 265×5.3 | 415×5.3 |
| 51.5×3.55 | 120×3.55 | 25×3.55 | 53×5.3 | 128×5.3 | 270×5.3 | 420 ×5.3 |
| 53×3.55 | 122×3.55 | 255×3.55 | 54.5×5.3 | 132×5.3 | 272×5.3 | 425×5.3 |
| 54.5×3.55 | 125 ×3.55 | 258 ×3.55 | 56×5.3 | 136×5.3 | 275×5.3 | 430 ×5.3 |
| 56×3.55 | 130 ×3.55 | 260 ×3.55 | 58×5.3 | 140×5.3 | 280 ×5.3 | 435 ×5.3 |
| 58×3.55 | 132×3.55 | 265 ×3.55 | 60×5.3 | 142×5.3 | 285×5.3 | 440 ×5.3 |
| 60×3.55 | 136×3.55 | 270 ×3.55 | 61.5×5.3 | 145 ×5.3 | 290 ×5.3 | 445 X5.3 |
| 61.5×3.55 | 140×3.55 | 272 ×3.55 | 63×5.3 | 150×5.3 | 295×5.3 | 450 ×5.3 |
| 63×3.55 | 145×3.55 | 275 ×3. 55 | 65×5.3 | 155×5.3 | 300 ×5.3 | 455 ×5.3 |
| 65×3.55 | 150 ×3.55 | 280 ×3.55 | 67×5.3 | 160 ×5.3 | 307×5.3 | 460 ×5.3 |
| 67X3.55 | 155×3.55 | 285×3.55 | 69×5.3 | 165×5.3 | 310×5.3 | 465 ×5.3 |
| 69 ×3.55 | 160×3.55 | 290 ×3.55 | 71×5.3 | 170 ×5.3 | 315×5.3 | 470 ×5.3 |
| 70×3.55 | 165×3.55 | 295 ×3.55 | 73×5.3 | 175×5.3 | 320×5.3 | 475×5.3 |
| 71×3.55 | 170 ×3.55 | 300 ×3.55 | 75×5.3 | 180×5.3 | 325×5.3 | 480 ×5.3 |
| 73×3.55 | 175×3.55 | 305 ×3.55 | 77.5×5.3 | 185 ×5.3 | 330×5.3 | 485 ×5.3 |
| 75 ×3.55 | 180×3.55 | 310 ×3.55 | 80×5.3 | 190 ×5.3 | 335×5.3 | 490 ×5.3 |
| 77.5 ×3. 55 | 185×3.55 | 320 ×3.55 | 82.5×5.3 | 195×5.3 | 340×5.3 | 495 ×5.3 |
| 80×3.55 | 190 ×3.55 | 325 ×3.55 | 85×5.3 | 200 ×5.3 | 345×5.3 | 500×5.3 |
| 82.5×3.55 | 195×3.55 | 330 ×3.55 | 87.5×5.3 | 203×5.3 | 350×5.3 | 505×5.3 |
| 85×3.55 | 200×3.55 | 335×3.55 | 90×5.3 | 206×5.3 | 355×5.3 | 510×5.3 |
| 87.5×3.55 | 206×3.55 | 340 ×3.55 | 92.5×5.3 | 210×5.3 | 360 ×5.3 | 515×5.3 |
| 90×3.55 | 208×3.55 | ID*CS-5.3 | 95×5.3 | 212×5.3 | 365×5.3 | 520×5.3 |
| 92.5×3.55 | 212×3.55 | 40 ×5.3 | 97.5×5.3 | 218×5.3 | 370×5.3 | 525×5.3 |
| 95×3.55 | 215×3.55 | 41. 2×5.3 | 100×5.3 | 224×5.3 | 375×5.3 | 530×5.3 |
| 97.5×3.55 | 218×3.55 | 42.3×5.3 | 103×5.3 | 230 ×5.3 | 380×5.3 | 535×5.3 |
| 100 ×3.55 | 220 × 3.55 | 43. 7×5.3 | 106×5.3 | 236×5.3 | 387×5.3 | 540×5.3 |
| 103×3.55 | 224×3.55 | 45×5.3 | 109×5.3 | 243×5.3 | 390 ×5.3 | 545×5.3 |
| 106×3.55 | 230×3.55 | 46. 2×5.3 | 112×5.3 | 250 ×5.3 | 395×5.3 | 550×5.3 |
| 109 ×3.55 | 236X3.55 | 47.5×5.3 | 115×5.3 | 254×5.3 | 400 ×5.3 | 555×5.3 |
| 112×3.55 | 240×3.55 | 48. 7×5.3 | 118×5.3 | 258×5.3 | 405 ×5.3 | 560 ×5.3 |
| 115×3.55 | 243×3.55 | 50×5.3 | 122×5.3 | 260×5.3 | 410×5.3 | 565×5.3 |
O-RING SIZE
| Chinese National Standard: New national standard GB/T 3452.1-2005 | ||||||
| 570×5.3 | 860 ×5.3 | 95×7 | 206×7 | 370×7 | 640X7 | 950X7 |
| 575×5.3 | 870×5.3 | 97×7 | 212×7 | 375×7 | 650×7 | 960×7 |
| 580×5.3 | 880×5.3 | 100X7 | 218×7 | 380×7 | 660X7 | 970 X7 |
| 585×5.3 | 890×5.3 | 101×7 | 224×7 | 387×7 | 670×7 | 980×7 |
| 590×5.3 | 900 ×5.3 | 103×7 | 230×7 | 390 ×7 | 680×7 | 990 X7 |
| 600×5.3 | 910×5.3 | 106×7 | 236×7 | 395×7 | 690×7 | 1000×7 |
| 610×5.3 | 920×5.3 | 107X7 | 243×7 | 400×7 | 700 ×7 | 1010×7 |
| 620×5.3 | 930 ×5.3 | 109×7 | 250×7 | 412×7 | 710×7 | 1020×7 |
| 630×5.3 | 940 X5.3 | 111X7 | 258×7 | 425 ×7 | 720 X7 | 1030×7 |
| 640×5.3 | 950 ×5.3 | 112×7 | 260×7 | 430×7 | 730×7 | 1040×7 |
| 650×5.3 | 960 X5.3 | 115X7 | 265×7 | 437X7 | 740×7 | 1050×7 |
| 660×5.3 | 970×5.3 | 118×7 | 272 ×7 | 443×7 | 750×7 | |
| 670×5.3 | 980X5.3 | 122×7 | 275×7 | 450×7 | 760×7 | |
| 680×5.3 | 990 ×5.3 | 125×7 | 280×7 | 462×7 | 770×7 | |
| 690×5.3 | 1000×5.3 | 128X7 | 285×7 | 475×7 | 780×7 | |
| 700×5.3 | ID*CS-7 | 132×7 | 290 ×7 | 487×7 | 790 ×7 | |
| 710×5.3 | 37X7 | 136×7 | 295×7 | 490×7 | 800×7 | |
| 720 ×5.3 | 41×7 | 140×7 | 300×7 | 500×7 | 810×7 | |
| 730×5.3 | 43×7 | 145X7 | 307×7 | 510×7 | 820×7 | |
| 740×5.3 | 48×7 | 150×7 | 310×7 | 520×7 | 830×7 | |
| 750×5.3 | 53×7 | 155×7 | 315×7 | 530×7 | 840X7 | |
| 760×5.3 | 54×7 | 160×7 | 320×7 | 540×7 | 850×7 | |
| 770×5.3 | 56×7 | 165X7 | 325×7 | 550×7 | 860X7 | |
| 780×5.3 | 60×7 | 170×7 | 330×7 | 560×7 | 870×7 | |
| 790×5.3 | 66×7 | 175×7 | 335×7 | 570×7 | 880×7 | |
| 800×5.3 | 71×7 | 180×7 | 340×7 | 580×7 | 890×7 | |
| 810×5.3 | 76X7 | 185×7 | 345×7 | 590×7 | 900X7 | |
| 820×5.3 | 82×7 | 190×7 | 350×7 | 600×7 | 910×7 | |
| 830×5.3 | 86×7 | 195X7 | 355×7 | 610X7 | 920X7 | |
| 840×5.3 | 90×7 | 200×7 | 360×7 | 620×7 | 930×7 | |
| 850×5.3 | 92×7 | 203×7 | 365×7 | 630×7 | 940X7 | |
O-RING SIZE
| American standard: SAE AS 568 | |||||||
| ID*CS-1. 78 | 55.25×2. 62 | 8×3 | 36×3 | 65×3 | 97×3 | 128×3 | 161×3 |
| 10. 82 X1. 78 | 56.82 ×2. 62 | 9×3 | 37×3 | 66×3 | 98×3 | 129×3 | 162×3 |
| 15.6X1.78 | 58.42×2. 62 | 10×3 | 38×3 | 67×3 | 99×3 | 130×3 | 163×3 |
| 17. 17× 1. 78 | 67. 95 X 2. 62 | 11×3 | 39×3 | 68×3 | 100×3 | 132×3 | 164×3 |
| 18. 77×1. 78 | 72. 69 X 2. 62 | 12×3 | 39.2×3 | 69×3 | 101X3 | 133×3 | 165×3 |
| 21. 95 ×1. 78 | 74. 3 × 2. 62 | 13×3 | 40×3 | 70×3 | 102×3 | 134×3 | 166×3 |
| 22X1. 78 | 75. 87 X 2. 62 | 13.5×3 | 41×3 | 71×3 | 103×3 | 135×3 | 167×3 |
| 35×1.78 | 83.80×2.62 | 14×3 | 42×3 | 72×3 | 104×3 | 136×3 | 168×3 |
| 37.82*1. 78 | 88.57×2. 62 | 15×3 | 43×3 | 74×3 | 105×3 | 137×3 | 169×3 |
| 50.52×1. 78 | 101. 27 X 2. 62 | 16×3 | 44×3 | 75×3 | 106×3 | 138×3 | 170×3 |
| 53.7×1. 78 | 107. 62× 2. 62 | 17×3 | 45×3 | 76×3 | 107×3 | 139×3 | 171X3 |
| 56.87 ×1. 78 | 113. 97X 2. 62 | 18×3 | 46×3 | 77×3 | 108×3 | 140×3 | 172×3 |
| 66.4X1.78 | 120.62×2.62 | 19×3 | 47×3 | 78×3 | 109×3 | 141×3 | 173×3 |
| 69. 57 X1. 78 | 126. 67 X 2. 62 | 20×3 | 48×3 | 79×3 | 110×3 | 142×3 | 174×3 |
| 82.27X1. 78 | 133.02×2. 62 | 21×3 | 49×3 | 80×3 | 111×3 | 143×3 | 175×3 |
| 88.62 X1. 78 | 139. 37 X 2. 62 | 22×3 | 50×3 | 81×3 | 112×3 | 144×3 | 178×3 |
| 91.7×1.78 | 152. 07× 2. 62 | 23×3 | 51×3 | 82×3 | 113×3 | 145×3 | 179×3 |
| 101.32×1. 78 | 158. 42 × 2. 62 | 24×3 | 52×3 | 83×3 | 114×3 | 146×3 | 180×3 |
| 104.4×1.78 | 177. 47 X 2. 62 | 25×3 | 53×3 | 84×3 | 115×3 | 147X3 | 181×3 |
| 107. 67 X1. 78 | 183.82× 2. 62 | 26×3 | 54×3 | 85×3 | 116×3 | 148×3 | 182×3 |
| 126.72×1. 78 | 202.87×2. 62 | 27×3 | 55×3 | 86×3 | 117×3 | 149×3 | 184X3 |
| 133. 07 X1. 78 | 215.54× 2. 62 | 28×3 | 56×3 | 87×3 | 118×3 | 150×3 | 185×3 |
| ID*CS-2.62 | 221.92× 2. 62 | 29×3 | 57×3 | 88×3 | 119×3 | 151×3 | 188×3 |
| 9.19 ×2. 62 | 228. 27 × 2. 62 | 29.2×3 | 58×3 | 89×3 | 120×3 | 152×3 | 189×3 |
| 18.72×2.62 | 234. 62×2. 62 | 30×3 | 59×3 | 90×3 | 121×3 | 153×3 | 190×3 |
| 20. 63×2. 62 | 247. 32 × 2. 62 | 31×3 | 59.5×3 | 91×3 | 122×3 | 154×3 | 191×3 |
| 39.34X2.62 | ID*CS-3 | 32×3 | 60×3 | 92×3 | 123×3 | 155×3 | 192X3 |
| 45.69×2.62 | 4×3 | 33×3 | 61×3 | 93×3 | 124×3 | 156×3 | 193×2 |
| 50.47X2. 62 | 5×3 | 34×3 | 62×3 | 94×3 | 125×3 | 157×3 | 194X3 |
| 52.07×2.62 | 6×3 | 34.2×3 | 63×3 | 95×3 | 126×3 | 158×3 | 195×3 |
| 53.64X2. 62 | 7×3 | 35×3 | 64X3 | 96X3 | 127×3 | 160×3 | 196×3 |
O-RING SIZE
| American standard: SAE AS 568 | |||||
| 197×3 | 300×3 | 44. 45×3.53 | 29.51×5.33 | 253.37×5.33 | 183. 52X6.99 |
| 198×3 | 304×3 | 50.80 ×3.53 | 34. 29×5.33 | 278. 77×5.33 | 187. 30 X6. 99 |
| 200×3 | 305×3 | 53.57×3.53 | 40.64×5.33 | 291.47×5.33 | 202. 57X6.99 |
| 203×3 | 310×3 | 55.56×3.53 | 46.99 ×5. 33 | 318. 70 ×5. 33 | 208.92X6. 99 |
| 204×3 | 320×3 | 58.78×3.53 | 66.04X5.33 | 338.15×5.33 | 227.97×6.99 |
| 205×3 | 325×3 | 78. 97 X3. 53 | 72. 39 ×5. 33 | 481. 46 ×5. 33 | 253. 37 ×6. 99 |
| 210×3 | 330×3 | 88.49X3. 53 | 78. 74×5.33 | 506.81×5.33 | 259. 70 X6.99 |
| 212×3 | 335×3 | 91. 67 X3. 53 | 81.92×5. 33 | 532. 21×5. 33 | 278. 77 X6. 99 |
| 215×3 | 340×3 | 101.19×3.53 | 88.27×5.33 | 557.61×5.33 | 291. 47×6. 99 |
| 216×3 | 345×3 | 104.37×3.53 | 91. 44×5. 33 | 582.68×5.33 | 297. 80 X6. 99 |
| 218×3 | 350×3 | 107.54×3.53 | 97. 79×5. 33 | 608.08×5.33 | 323.20X6.99 |
| 220 ×3 | 354×3 | 110. 72×3. 53 | 100.97×5. 33 | 633.48×5.33 | 342. 27 ×6. 99 |
| 225×3 | 355×3 | 113.89×3.53 | 104. 14×5.33 | 658.88×5.33 | 367.67×6.99 |
| 230 ×3 | 360×3 | 117. 07×3. 53 | 110. 49×5. 33 | ID*CS-6. 99 | 393. 07 X 6. 99 |
| 232×3 | 365×3 | 119. 7X3.53 | 113. 67X5. 33 | 34. 29 X 6.99 | 417. 96X6. 99 |
| 233×3 | 370×3 | 123. 42×3. 53 | 116.84×5. 33 | 43. 82 X 6. 99 | 443.36X6. 99 |
| 235×3 | 375×3 | 126.59×3. 53 | 123.8×5. 33 | 53.34X6.99 | 456.06X6.99 |
| 240×3 | 380×3 | 139.30 ×3. 53 | 139. 07 ×5. 33 | 56.52X 6. 99 | 468.76×6.99 |
| 242×3 | 385×3 | 142.47×3.53 | 142. 24×5.33 | 64. 25X6.99 | 481. 16X6.99 |
| 245 ×3 | 390×3 | 151. 99 ×3. 53 | 148. 59 ×5. 33 | 72. 39 X 6. 99 | 494. 16X 6. 99 |
| 247×3 | 395×3 | 221.84×3.53 | 151. 77×5. 33 | 78. 74X6.99 | 506.86X6.99 |
| 250 ×3 | 400×3 | 234. 54×3. 53 | 158. 12×5. 33 | 88. 25 X 6. 99 | 532. 26X6. 99 |
| 255×3 | ID*CS-3. 53 | 240.89×3. 53 | 161.30×5.33 | 94. 62 X6.99 | 557. 66X6.99 |
| 257×3 | 7.52×3.53 | 266.29 ×3. 53 | 177. 17×5. 33 | 107. 30 X 6. 99 | 583. 68X6. 99 |
| 260×3 | 10. 69X3.53 | 291.69×3.53 | 183.52×5.33 | 110.49 ×6.99 | 608.08×6.99 |
| 265×3 | 12. 29 ×3. 53 | ID*CS-5. 33 | 202. 57×5. 33 | 116. 84X 6. 99 | 633. 48 X6. 99 |
| 270×3 | 15.47×3.53 | 16.81×5. 33 | 208.92×5.33 | 126. 37X6.99 | 658.88×6.99 |
| 275×3 | 18. 64X3.53 | 21.59 ×5.33 | 221. 62×5. 33 | 139. 07 X 6. 99 | |
| 280×3 | 21.82×3.53 | 23.16×5.33 | 227. 97×5. 33 | 142. 24X 6. 99 | |
| 285×3 | 39.69×3. 53 | 24. 77×5. 33 | 234.32×5.33 | 148. 59 × 6. 99 | |
| 295×3 | 40.87×3. 53 | 26.34×5.33 | 247. 02×5.33 | 177. 17X 6. 99 | |
O-RING SIZE
| Other non-standard sizes | |||||
| IDXCS | 9×1.7 | 160×6.3 | 220×6.3 | ODXCS | 59×4.5 |
| 4.2×1.4 | 29.44×3.3 | 165×6.3 | 230×6.3 | 15×4.5 | 75×4.5 |
| 17×1.4 | 29×3.4 | 170×6.3 | 235×6.3 | 27 ×4.5 | 58X4.6 |
| 35×1.4 | 46X3.65 | 180×6.3 | 240×6.3 | 28×4.5 | 99×9 |
| 3.8×1.6 | 28×3.7 | 185×6.3 | 250×6.3 | 34×4.5 | 120×9 |
| 2.2×1.6 | 80×3.75 | 190×6.3 | 265×7.3 | 41 ×4.5 | 154×9 |
| 9×1.6 | 280×4.5 | 200×6.3 | 68×7.5 | 45×4.5 | |
| 13×1.6 | 140×6.3 | 205×6.3 | 180×7.5 | 50×4.5 | |
| 15×1.6 | 145×6.3 | 210×6.3 | 257×7.5 | 55×4.5 | |
| 85×1.6 | 150×6.3 | 215×6.3 | 200×7.5 | 58×4.5 | |
Full-dimensional customized standard in-stock products precisely match your sealing requirements
We have a full range of standard-sized O-rings in stock, covering common specifications in the industry. There is no need to wait for the production cycle. Orders can be dispatched quickly to meet your urgentreplenishment and regular usage needs.
Extra-large size O-rings, no mold opening required Hollow O-rings, customizable in any size The color, material, size, hardness, Logo and packaging can be adjusted as needed
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APPLICATIONFIELD
Petrochemical industry
Medical device industry
Metallurgical industry
The automotive industry
Valve manufacturing industry
Mechanical manufacturing
Food industry
Aerospace manufacturing industry
APPLICATIONFIELD
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Water conservancy and hydropower
Rail transit industry
Hydraulics,Pneumaticsand sealing
The construction industry
Agricultural machinery industry
General equipment manufacturing
Motor vehicle maintenance service
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