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
BS475 PTFE N/A
189411 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 15.475 in393.07 mm N/A 0.006 in0.15 mm N/A -475
BS459 PTFE N/A
189412 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 14.9751 in380.37 mm N/A 0.006 in0.15 mm N/A -459
BS458 PTFE N/A
189413 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 14.475 in367.67 mm N/A 0.006 in0.15 mm N/A -458
BS457 PTFE N/A
189414 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 13.9751 in354.97 mm N/A 0.006 in0.15 mm N/A -457
BS456 PTFE N/A
189415 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 13.475 in342.27 mm N/A 0.006 in0.15 mm N/A -456
BS455 PTFE N/A
189416 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 12.975 in329.57 mm N/A 0.006 in0.15 mm N/A -455
BS454 PTFE N/A
189417 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 12.475 in316.87 mm N/A 0.006 in0.15 mm N/A -454
BS453 PTFE N/A
189418 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 11.975 in304.17 mm N/A 0.006 in0.15 mm N/A -453
BS452 PTFE N/A
189419 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 11.475 in291.47 mm N/A 0.006 in0.15 mm N/A -452
BS451 PTFE N/A
189420 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 10.975 in278.77 mm N/A 0.006 in0.15 mm N/A -451
BS450 PTFE N/A
189421 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 10.475 in266.07 mm N/A 0.006 in0.15 mm N/A -450
BS449 PTFE N/A
189422 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 9.975 in253.37 mm N/A 0.006 in0.15 mm N/A -449
BS448 PTFE N/A
189423 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 9.475 in240.67 mm N/A 0.006 in0.15 mm N/A -448
BS447 PTFE N/A
189424 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 8.975 in227.97 mm N/A 0.006 in0.15 mm N/A -447
BS446 PTFE N/A
189425 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 8.475 in215.27 mm N/A 0.006 in0.15 mm N/A -446
BS445 PTFE N/A
189426 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 7.975 in202.57 mm N/A 0.006 in0.15 mm N/A -445
BS444 PTFE N/A
189427 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 7.725 in196.22 mm N/A 0.006 in0.15 mm N/A -444
BS443 PTFE N/A
189428 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 7.475 in189.87 mm N/A 0.006 in0.15 mm N/A -443
BS442 PTFE N/A
189429 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 7.225 in183.52 mm N/A 0.006 in0.15 mm N/A -442
BS441 PTFE N/A
189430 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 6.975 in177.17 mm N/A 0.006 in0.15 mm N/A -441
BS440 PTFE N/A
189431 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 6.725 in170.82 mm N/A 0.006 in0.15 mm N/A -440
BS439 PTFE N/A
189432 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 6.475 in164.47 mm N/A 0.006 in0.15 mm N/A -439
BS438 PTFE N/A
189433 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 6.225 in158.12 mm N/A 0.006 in0.15 mm N/A -438
BS437 PTFE N/A
189434 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 5.975 in151.77 mm N/A 0.006 in0.15 mm N/A -437
BS436 PTFE N/A
189435 		N/A BS Standard O-Ring N/A PTFE N/A 0.275 in6.99 mm N/A 5.850 in148.59 mm N/A 0.006 in0.15 mm N/A -436
Unit of Measure
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