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 |
Product Guides |
---|---|---|---|---|---|---|---|---|
BS331 PTFE |
IntegrationID
N/A 189511 |
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 2.225 in56.52 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -331 | Product Guides N/A Seal Guides |
BS330 PTFE |
IntegrationID
N/A 189512 |
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 2.100 in53.34 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -330 | Product Guides N/A Seal Guides |
BS329 PTFE |
IntegrationID
N/A 189513 |
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 1.975 in50.17 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -329 | Product Guides N/A Seal Guides |
BS328 PTFE |
IntegrationID
N/A 189514 |
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 1.850 in46.99 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -328 | Product Guides N/A Seal Guides |
BS327 PTFE |
IntegrationID
N/A 189515 |
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 1.725 in43.82 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -327 | Product Guides N/A Seal Guides |
BS326 PTFE |
IntegrationID
N/A 189516 |
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 1.75 in40.64 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -326 | Product Guides N/A Seal Guides |
BS325 PTFE |
IntegrationID
N/A 189517 |
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 1.475 in37.47 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -325 | Product Guides N/A Seal Guides |
BS324 PTFE |
IntegrationID
N/A 189518 |
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 1.350 in34.29 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -324 | Product Guides N/A Seal Guides |
BS323 PTFE |
IntegrationID
N/A 189519 |
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 1.287 in32.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -323 | Product Guides N/A Seal Guides |
BS322 PTFE |
IntegrationID
N/A 189520 |
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 1.225 in31.12 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -322 | Product Guides N/A Seal Guides |
BS321 PTFE |
IntegrationID
N/A 189521 |
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 1.162 in29.51 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -321 | Product Guides N/A Seal Guides |
BS320 PTFE |
IntegrationID
N/A 189522 |
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 1.100 in27.94 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -320 | Product Guides N/A Seal Guides |
BS319 PTFE |
IntegrationID
N/A 189523 |
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 1.037 in26.34 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -319 | Product Guides N/A Seal Guides |
BS318 PTFE |
IntegrationID
N/A 189524 |
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 0.975 in24.77 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -318 | Product Guides N/A Seal Guides |
BS317 PTFE |
IntegrationID
N/A 189525 |
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 0.912 in23.16 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -317 | Product Guides N/A Seal Guides |
BS316 PTFE |
IntegrationID
N/A 189526 |
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 0.850 in21.59 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -316 | Product Guides N/A Seal Guides |
BS315 PTFE |
IntegrationID
N/A 189527 |
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 0.787 in19.99 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -315 | Product Guides N/A Seal Guides |
BS314 PTFE |
IntegrationID
N/A 189528 |
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 0.725 in18.42 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -314 | Product Guides N/A Seal Guides |
BS313 PTFE |
IntegrationID
N/A 189529 |
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 0.662 in16.81 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -313 | Product Guides N/A Seal Guides |
BS312 PTFE |
IntegrationID
N/A 189530 |
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 0.75 in15.24 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -312 | Product Guides N/A Seal Guides |
BS311 PTFE |
IntegrationID
N/A 189531 |
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 0.537 in13.64 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -311 | Product Guides N/A Seal Guides |
BS310 PTFE |
IntegrationID
N/A 189532 |
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 0.475 in12.07 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -310 | Product Guides N/A Seal Guides |
BS309 PTFE |
IntegrationID
N/A 189533 |
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 0.412 in10.46 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -309 | Product Guides N/A Seal Guides |
BS281 PTFE |
IntegrationID
N/A 189534 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 14.984 in380.59 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -281 | Product Guides N/A Seal Guides |
BS280 PTFE |
IntegrationID
N/A 189535 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 13.984 in355.19 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -280 | Product Guides N/A Seal Guides |