BS Aflas O-Rings | OneMonroe

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.

Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	CSW Tolerance	BS Number
BS868 AFLAS-83	N/A 186983	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 5.63 in142.88 mm	N/A 0.005 in0.13 mm	N/A -868
BS867 AFLAS-83	N/A 186984	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 5.50 in139.70 mm	N/A 0.005 in0.13 mm	N/A -867
BS866 AFLAS-83	N/A 186985	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 5.38 in136.53 mm	N/A 0.005 in0.13 mm	N/A -866
BS865 AFLAS-83	N/A 186986	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 5.25 in133.35 mm	N/A 0.005 in0.13 mm	N/A -865
BS864 AFLAS-83	N/A 186987	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 5.13 in130.18 mm	N/A 0.005 in0.13 mm	N/A -864
BS863 AFLAS-83	N/A 186988	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 5.00 in127.00 mm	N/A 0.005 in0.13 mm	N/A -863
BS862 AFLAS-83	N/A 186989	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 4.88 in123.83 mm	N/A 0.005 in0.13 mm	N/A -862
BS861 AFLAS-83	N/A 186990	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 4.75 in120.65 mm	N/A 0.005 in0.13 mm	N/A -861
BS875 AFLAS-83	N/A 186991	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 4.63 in117.48 mm	N/A 0.005 in0.13 mm	N/A -875
BS846 AFLAS-83	N/A 186992	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.94 in74.60 mm	N/A 0.004 in0.10 mm	N/A -846
BS845 AFLAS-83	N/A 186993	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.88 in73.03 mm	N/A 0.004 in0.10 mm	N/A -845
BS844 AFLAS-83	N/A 186994	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.81 in71.44 mm	N/A 0.004 in0.10 mm	N/A -844
BS843 AFLAS-83	N/A 186995	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.75 in69.85 mm	N/A 0.004 in0.10 mm	N/A -843
BS842 AFLAS-83	N/A 186996	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.69 in68.25 mm	N/A 0.004 in0.10 mm	N/A -842
BS841 AFLAS-83	N/A 186997	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.63 in66.68 mm	N/A 0.004 in0.10 mm	N/A -841
BS840 AFLAS-83	N/A 186998	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.56 in65.1 mm	N/A 0.004 in0.10 mm	N/A -840
BS839 AFLAS-83	N/A 186999	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.50 in63.50 mm	N/A 0.004 in0.10 mm	N/A -839
BS838 AFLAS-83	N/A 187000	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.44 in61.90 mm	N/A 0.004 in0.10 mm	N/A -838
BS837 AFLAS-83	N/A 187001	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.97 in75.33 mm	N/A 0.004 in0.10 mm	N/A -837
BS836 AFLAS-83	N/A 187002	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.31 in58.74 mm	N/A 0.004 in0.10 mm	N/A -836
BS835 AFLAS-83	N/A 187003	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.25 in57.15 mm	N/A 0.004 in0.10 mm	N/A -835
BS834 AFLAS-83	N/A 187004	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.19 in55.55 mm	N/A 0.004 in0.10 mm	N/A -834
BS833 AFLAS-83	N/A 187005	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.13 in53.98 mm	N/A 0.004 in0.10 mm	N/A -833
BS832 AFLAS-83	N/A 187006	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.06 in52.39 mm	N/A 0.004 in0.10 mm	N/A -832
BS831 AFLAS-83	N/A 187007	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 2.00 in50.80 mm	N/A 0.004 in0.10 mm	N/A -831

N/A
186983

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 5.63 in142.88 mm

N/A 0.005 in0.13 mm

N/A -868

BS867 AFLAS-83

N/A
186984

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 5.50 in139.70 mm

N/A 0.005 in0.13 mm

N/A -867

BS866 AFLAS-83

N/A
186985

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 5.38 in136.53 mm

N/A 0.005 in0.13 mm

N/A -866

BS865 AFLAS-83

N/A
186986

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 5.25 in133.35 mm

N/A 0.005 in0.13 mm

N/A -865

BS864 AFLAS-83

N/A
186987

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 5.13 in130.18 mm

N/A 0.005 in0.13 mm

N/A -864

BS863 AFLAS-83

N/A
186988

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 5.00 in127.00 mm

N/A 0.005 in0.13 mm

N/A -863

BS862 AFLAS-83

N/A
186989

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 4.88 in123.83 mm

N/A 0.005 in0.13 mm

N/A -862

BS861 AFLAS-83

N/A
186990

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 4.75 in120.65 mm

N/A 0.005 in0.13 mm

N/A -861

BS875 AFLAS-83

N/A
186991

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 4.63 in117.48 mm

N/A 0.005 in0.13 mm

N/A -875

BS846 AFLAS-83

N/A
186992

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.94 in74.60 mm

N/A 0.004 in0.10 mm

N/A -846

BS845 AFLAS-83

N/A
186993

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.88 in73.03 mm

N/A 0.004 in0.10 mm

N/A -845

BS844 AFLAS-83

N/A
186994

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.81 in71.44 mm

N/A 0.004 in0.10 mm

N/A -844

BS843 AFLAS-83

N/A
186995

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.75 in69.85 mm

N/A 0.004 in0.10 mm

N/A -843

BS842 AFLAS-83

N/A
186996

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.69 in68.25 mm

N/A 0.004 in0.10 mm

N/A -842

BS841 AFLAS-83

N/A
186997

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.63 in66.68 mm

N/A 0.004 in0.10 mm

N/A -841

BS840 AFLAS-83

N/A
186998

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.56 in65.1 mm

N/A 0.004 in0.10 mm

N/A -840

BS839 AFLAS-83

N/A
186999

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.50 in63.50 mm

N/A 0.004 in0.10 mm

N/A -839

BS838 AFLAS-83

N/A
187000

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.44 in61.90 mm

N/A 0.004 in0.10 mm

N/A -838

BS837 AFLAS-83

N/A
187001

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.97 in75.33 mm

N/A 0.004 in0.10 mm

N/A -837

BS836 AFLAS-83

N/A
187002

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.31 in58.74 mm

N/A 0.004 in0.10 mm

N/A -836

BS835 AFLAS-83

N/A
187003

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.25 in57.15 mm

N/A 0.004 in0.10 mm

N/A -835

BS834 AFLAS-83

N/A
187004

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.19 in55.55 mm

N/A 0.004 in0.10 mm

N/A -834

BS833 AFLAS-83

N/A
187005

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.13 in53.98 mm

N/A 0.004 in0.10 mm

N/A -833

BS832 AFLAS-83

N/A
187006

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.06 in52.39 mm

N/A 0.004 in0.10 mm

N/A -832

BS831 AFLAS-83

N/A
187007

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 2.00 in50.80 mm

N/A 0.004 in0.10 mm

N/A -831