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 |
---|---|---|---|---|---|---|---|---|
BS254 PTFE |
IntegrationID
N/A 189561 |
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 5.484 in139.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -254 | Product Guides N/A Seal Guides |
BS253 PTFE |
IntegrationID
N/A 189562 |
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 5.359 in136.12 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -253 | Product Guides N/A Seal Guides |
BS252 PTFE |
IntegrationID
N/A 189563 |
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 5.234 in132.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -252 | Product Guides N/A Seal Guides |
BS251 PTFE |
IntegrationID
N/A 189564 |
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 5.109 in129.77 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -251 | Product Guides N/A Seal Guides |
BS250 PTFE |
IntegrationID
N/A 189565 |
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 4.984 in126.59 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -250 | Product Guides N/A Seal Guides |
BS249 PTFE |
IntegrationID
N/A 189566 |
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 4.859 in123.42 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -249 | Product Guides N/A Seal Guides |
BS248 PTFE |
IntegrationID
N/A 189567 |
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 4.734 in120.24 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -248 | Product Guides N/A Seal Guides |
BS247 PTFE |
IntegrationID
N/A 189568 |
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 4.759 in117.07 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -247 | Product Guides N/A Seal Guides |
BS246 PTFE |
IntegrationID
N/A 189569 |
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 4.484 in113.89 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -246 | Product Guides N/A Seal Guides |
BS245 PTFE |
IntegrationID
N/A 189570 |
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 4.359 in110.72 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -245 | Product Guides N/A Seal Guides |
BS244 PTFE |
IntegrationID
N/A 189571 |
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 4.234 in107.54 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -244 | Product Guides N/A Seal Guides |
BS243 PTFE |
IntegrationID
N/A 189572 |
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 4.109 in104.37 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -243 | Product Guides N/A Seal Guides |
BS242 PTFE |
IntegrationID
N/A 189573 |
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 3.984 in101.19 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -242 | Product Guides N/A Seal Guides |
BS241 PTFE |
IntegrationID
N/A 189574 |
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 3.859 in98.02 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -241 | Product Guides N/A Seal Guides |
BS240 PTFE |
IntegrationID
N/A 189575 |
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 3.734 in94.84 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -240 | Product Guides N/A Seal Guides |
BS239 PTFE |
IntegrationID
N/A 189576 |
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 3.759 in91.67 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -239 | Product Guides N/A Seal Guides |
BS238 PTFE |
IntegrationID
N/A 189577 |
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 3.484 in88.49 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -238 | Product Guides N/A Seal Guides |
BS237 PTFE |
IntegrationID
N/A 189578 |
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 3.359 in85.32 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -237 | Product Guides N/A Seal Guides |
BS236 PTFE |
IntegrationID
N/A 189579 |
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 3.234 in82.14 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -236 | Product Guides N/A Seal Guides |
BS235 PTFE |
IntegrationID
N/A 189580 |
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 3.109 in78.97 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -235 | Product Guides N/A Seal Guides |
BS234 PTFE |
IntegrationID
N/A 189581 |
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 2.984 in75.79 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -234 | Product Guides N/A Seal Guides |
BS233 PTFE |
IntegrationID
N/A 189582 |
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 2.859 in72.62 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -233 | Product Guides N/A Seal Guides |
BS232 PTFE |
IntegrationID
N/A 189583 |
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 2.734 in69.44 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -232 | Product Guides N/A Seal Guides |
BS231 PTFE |
IntegrationID
N/A 189584 |
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 2.759 in66.27 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -231 | Product Guides N/A Seal Guides |
BS230 PTFE |
IntegrationID
N/A 189585 |
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 2.484 in63.09 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -230 | Product Guides N/A Seal Guides |