Monroe
OneMonroe
Locations Throughout the Country
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Tel: (877) 740-2007
Fax: (800) 453-9683
Email: sales@askmonroe.com
Website: monroeengineering.com
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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.

BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS381 PTFE N/A
189461 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 11.975 in304.17 mm N/A 0.005 in0.13 mm N/A -381
BS380 PTFE N/A
189462 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 11.475 in291.47 mm N/A 0.005 in0.13 mm N/A -380
BS379 PTFE N/A
189463 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 10.975 in278.77 mm N/A 0.005 in0.13 mm N/A -379
BS378 PTFE N/A
189464 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 10.475 in266.07 mm N/A 0.005 in0.13 mm N/A -378
BS377 PTFE N/A
189465 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 9.975 in253.37 mm N/A 0.005 in0.13 mm N/A -377
BS376 PTFE N/A
189466 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 9.725 in247.02 mm N/A 0.005 in0.13 mm N/A -376
BS375 PTFE N/A
189467 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 9.475 in240.67 mm N/A 0.005 in0.13 mm N/A -375
BS374 PTFE N/A
189468 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 9.225 in234.32 mm N/A 0.005 in0.13 mm N/A -374
BS373 PTFE N/A
189469 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 8.975 in227.97 mm N/A 0.005 in0.13 mm N/A -373
BS372 PTFE N/A
189470 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 8.725 in221.62 mm N/A 0.005 in0.13 mm N/A -372
BS371 PTFE N/A
189471 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 8.475 in215.27 mm N/A 0.005 in0.13 mm N/A -371
BS370 PTFE N/A
189472 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 8.225 in208.92 mm N/A 0.005 in0.13 mm N/A -370
BS369 PTFE N/A
189473 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 7.975 in202.57 mm N/A 0.005 in0.13 mm N/A -369
BS368 PTFE N/A
189474 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 7.725 in196.22 mm N/A 0.005 in0.13 mm N/A -368
BS367 PTFE N/A
189475 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 7.475 in189.87 mm N/A 0.005 in0.13 mm N/A -367
BS366 PTFE N/A
189476 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 7.225 in183.52 mm N/A 0.005 in0.13 mm N/A -366
BS365 PTFE N/A
189477 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 6.975 in177.17 mm N/A 0.005 in0.13 mm N/A -365
BS364 PTFE N/A
189478 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 6.725 in170.82 mm N/A 0.005 in0.13 mm N/A -364
BS363 PTFE N/A
189479 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 6.475 in164.47 mm N/A 0.005 in0.13 mm N/A -363
BS362 PTFE N/A
189480 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 6.225 in158.12 mm N/A 0.005 in0.13 mm N/A -362
BS361 PTFE N/A
189481 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 5.975 in151.77 mm N/A 0.005 in0.13 mm N/A -361
BS375 PTFE N/A
189482 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 5.850 in148.59 mm N/A 0.005 in0.13 mm N/A -375
BS359 PTFE N/A
189483 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 5.725 in145.42 mm N/A 0.005 in0.13 mm N/A -359
BS358 PTFE N/A
189484 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 5.6 in142.24 mm N/A 0.005 in0.13 mm N/A -358
BS357 PTFE N/A
189485 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 5.475 in139.07 mm N/A 0.005 in0.13 mm N/A -357
Unit of Measure
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