OneMonroe PTFE O-Rings provide an exceptional sealing solution for demanding applications where standard rubber or elastomer rings may fall short. These high-quality O-Rings are made from PTFE (polytetrafluoroethylene), a versatile and durable material known for its remarkable resistance to high temperatures, chemicals, and extreme environmental conditions. PTFE O-Rings offer superior performance in harsh industrial settings, such as chemical processing, oil and gas, and food manufacturing, where contamination-free, leak-proof seals are essential. OneMonroe’s PTFE O-Rings are designed to maintain their integrity under extreme pressure, making them an optimal choice for businesses that prioritize reliable, long-lasting components.
Available in a range of sizes to fit various BS specifications, OneMonroe’s PTFE O-Rings are engineered to meet the unique demands of high-temperature and corrosive applications. Unlike traditional O-Rings, PTFE O-Rings are non-reactive and highly resistant to a wide range of chemicals, including acids, bases, and solvents, allowing them to deliver top-notch performance where rubber O-Rings might degrade. The PTFE material also boasts a low coefficient of friction, which minimizes wear and tear on both the O-Ring and surrounding components. This means less downtime and fewer replacements, translating to cost savings and increased operational efficiency for your business.
OneMonroe is committed to providing products that offer exceptional durability and performance in even the most challenging environments. Each PTFE O-Ring is precision-manufactured and quality-checked to meet stringent industry standards, ensuring you receive a reliable product every time. Whether you’re working in an industrial, automotive, or medical setting, OneMonroe PTFE O-Rings are designed to handle the job with unmatched resilience and durability. Trust OneMonroe’s dedication to quality and performance, and let our PTFE O-Rings help keep your operations running smoothly and securely.
For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Cross Section Width (in)
Cross Section Width (mm)
Inside Diameter (in)
Inside Diameter (mm)
Item # |
IntegrationID |
Type |
Material |
Cross Section Width |
Inside Diameter |
CSW Tolerance |
BS Number |
---|---|---|---|---|---|---|---|
BS356 PTFE |
IntegrationID
N/A 189486 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 5.350 in135.89 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -356 |
BS355 PTFE |
IntegrationID
N/A 189487 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 5.225 in132.72 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -355 |
BS354 PTFE |
IntegrationID
N/A 189488 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 5.100 in129.54 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -354 |
BS353 PTFE |
IntegrationID
N/A 189489 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.975 in126.37 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -353 |
BS352 PTFE |
IntegrationID
N/A 189490 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.850 in123.19 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -352 |
BS351 PTFE |
IntegrationID
N/A 189491 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.725 in120.02 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -351 |
BS350 PTFE |
IntegrationID
N/A 189492 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.6 in116.84 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -350 |
BS349 PTFE |
IntegrationID
N/A 189493 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.475 in113.67 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -349 |
BS348 PTFE |
IntegrationID
N/A 189494 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.350 in110.49 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -348 |
BS347 PTFE |
IntegrationID
N/A 189495 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.225 in107.32 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -347 |
BS346 PTFE |
IntegrationID
N/A 189496 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 4.100 in104.14 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -346 |
BS345 PTFE |
IntegrationID
N/A 189497 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.975 in100.97 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -345 |
BS344 PTFE |
IntegrationID
N/A 189498 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.850 in97.79 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -344 |
BS343 PTFE |
IntegrationID
N/A 189499 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.725 in94.62 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -343 |
BS342 PTFE |
IntegrationID
N/A 189500 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.75 in91.44 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -342 |
BS341 PTFE |
IntegrationID
N/A 189501 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.475 in88.27 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -341 |
BS340 PTFE |
IntegrationID
N/A 189502 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.350 in85.09 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -340 |
BS339 PTFE |
IntegrationID
N/A 189503 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.225 in81.92 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -339 |
BS338 PTFE |
IntegrationID
N/A 189504 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 3.100 in78.74 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -338 |
BS337 PTFE |
IntegrationID
N/A 189505 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 2.975 in75.57 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -337 |
BS336 PTFE |
IntegrationID
N/A 189506 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 2.850 in72.39 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -336 |
BS335 PTFE |
IntegrationID
N/A 189507 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 2.725 in69.22 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -335 |
BS334 PTFE |
IntegrationID
N/A 189508 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 2.75 in66.04 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -334 |
BS333 PTFE |
IntegrationID
N/A 189509 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 2.475 in62.87 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -333 |
BS332 PTFE |
IntegrationID
N/A 189510 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 2.350 in59.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -332 |