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 Aflas® O-Rings offer exceptional durability and resistance, engineered for high-performance applications where standard elastomers fall short. Made from Aflas® material, these O-rings are specifically designed to withstand challenging environments with extreme temperatures, chemicals, and aggressive fluids. Their outstanding resilience against oil, steam, acids, and alkalis makes them ideal for industries such as chemical processing, oil and gas, and automotive manufacturing, where exposure to such conditions is common. OneMonroe Aflas® O-Rings provide a reliable sealing solution that maintains its integrity and performance even in the most demanding applications.

The versatility of Aflas® material allows OneMonroe O-Rings to perform exceptionally in both high- and low-temperature ranges, ranging from -10°C to 200°C (14°F to 392°F). This unique thermal resistance ensures that these O-rings can be used effectively across a wide spectrum of applications, minimizing the need for frequent replacements and maintenance. In addition to temperature resilience, Aflas® O-Rings resist a variety of chemicals and fluids, including amines, bases, acids, and hydrocarbons. Their durability and adaptability make them a cost-effective choice for industries that demand long-lasting, reliable sealing solutions under extreme conditions.

OneMonroe’s commitment to quality ensures that each Aflas® O-Ring is manufactured with precision to meet rigorous industry standards. Available in a range of sizes and thicknesses, these O-rings offer flexibility in design while maintaining consistent, dependable sealing performance. With OneMonroe Aflas® O-Rings, you can be assured of high-quality components that deliver long-term reliability, reduce downtime, and support seamless operations across industries. Trust in OneMonroe to provide O-rings that uphold the highest standards in durability, chemical resistance, and thermal stability for all your specialized sealing needs.

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

Durometer

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS475 AFLAS-75 N/A
186633 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 15.48 in393.07 mm N/A 0.006 in0.15 mm N/A -475
BS459 AFLAS-75 N/A
186634 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 14.98 in380.37 mm N/A 0.006 in0.15 mm N/A -459
BS458 AFLAS-75 N/A
186635 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 14.48 in367.67 mm N/A 0.006 in0.15 mm N/A -458
BS457 AFLAS-75 N/A
186636 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 13.98 in354.97 mm N/A 0.006 in0.15 mm N/A -457
BS456 AFLAS-75 N/A
186637 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 13.48 in342.27 mm N/A 0.006 in0.15 mm N/A -456
BS455 AFLAS-75 N/A
186638 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 12.98 in329.57 mm N/A 0.006 in0.15 mm N/A -455
BS454 AFLAS-75 N/A
186639 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 12.48 in316.87 mm N/A 0.006 in0.15 mm N/A -454
BS453 AFLAS-75 N/A
186640 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 11.98 in304.17 mm N/A 0.006 in0.15 mm N/A -453
BS452 AFLAS-75 N/A
186641 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 11.48 in291.47 mm N/A 0.006 in0.15 mm N/A -452
BS451 AFLAS-75 N/A
186642 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 10.98 in278.77 mm N/A 0.006 in0.15 mm N/A -451
BS450 AFLAS-75 N/A
186643 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 10.48 in266.07 mm N/A 0.006 in0.15 mm N/A -450
BS449 AFLAS-75 N/A
186644 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 9.98 in253.37 mm N/A 0.006 in0.15 mm N/A -449
BS448 AFLAS-75 N/A
186645 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 9.48 in240.67 mm N/A 0.006 in0.15 mm N/A -448
BS447 AFLAS-75 N/A
186646 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 8.98 in227.97 mm N/A 0.006 in0.15 mm N/A -447
BS446 AFLAS-75 N/A
186647 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 8.48 in215.27 mm N/A 0.006 in0.15 mm N/A -446
BS445 AFLAS-75 N/A
186648 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.98 in202.57 mm N/A 0.006 in0.15 mm N/A -445
BS444 AFLAS-75 N/A
186649 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.73 in196.22 mm N/A 0.006 in0.15 mm N/A -444
BS443 AFLAS-75 N/A
186650 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.48 in189.87 mm N/A 0.006 in0.15 mm N/A -443
BS442 AFLAS-75 N/A
186651 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.23 in183.52 mm N/A 0.006 in0.15 mm N/A -442
BS441 AFLAS-75 N/A
186652 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.98 in177.17 mm N/A 0.006 in0.15 mm N/A -441
BS440 AFLAS-75 N/A
186653 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.73 in170.82 mm N/A 0.006 in0.15 mm N/A -440
BS439 AFLAS-75 N/A
186654 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.48 in164.47 mm N/A 0.006 in0.15 mm N/A -439
BS438 AFLAS-75 N/A
186655 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.23 in158.12 mm N/A 0.006 in0.15 mm N/A -438
BS437 AFLAS-75 N/A
186656 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 5.98 in151.77 mm N/A 0.006 in0.15 mm N/A -437
BS436 AFLAS-75 N/A
186657 		N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 5.85 in148.59 mm N/A 0.006 in0.15 mm N/A -436
Unit of Measure
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