BS Silicone O-Rings

OneMonroe Silicone O-Rings offer a top-tier sealing solution designed to withstand a wide range of temperatures, chemicals, and environmental conditions. Made from premium silicone materials, these O-rings provide exceptional resilience and durability, making them suitable for various applications in industries such as aerospace, automotive, and medical. Whether you're seeking protection against extreme temperatures, moisture, or harsh chemicals, OneMonroe Silicone O-Rings deliver reliable performance, ensuring a secure and consistent seal in both static and dynamic applications.

Our silicone O-rings are engineered for optimal flexibility and compression, ensuring they maintain their shape and function under both high-stress and low-stress conditions. With an impressive temperature range and resistance to UV, ozone, and many chemicals, they are ideal for challenging environments that demand both strength and adaptability. Available in a range of sizes, our BS Silicone O-Rings offer versatile solutions for both standard and custom applications, ensuring you find the exact fit needed for your specific requirements. We manufacture each O-ring with precision, ensuring that each product meets the highest quality standards.

OneMonroe takes pride in providing reliable sealing solutions that enhance the safety and efficiency of your systems. Our silicone O-rings are carefully tested to ensure consistent quality and performance, providing you with a dependable sealing option that stands the test of time. With our commitment to quality and an extensive selection of sizes and specifications, OneMonroe Silicone O-Rings are the ideal choice for anyone looking to secure their equipment against leaks, contamination, or environmental wear. Choose OneMonroe for a sealing solution that meets your toughest demands and offers exceptional value in performance and durability.

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
BS903 S-70	N/A 186045	N/A BS Standard O-Ring	N/A Silicone	N/A 0.064 in1.63 mm	N/A 70	N/A 0.301 in7.65 mm	N/A 0.003 in0.08 mm	N/A -903
BS902 S-70	N/A 186046	N/A BS Standard O-Ring	N/A Silicone	N/A 0.064 in1.63 mm	N/A 70	N/A 0.239 in6.07 mm	N/A 0.003 in0.08 mm	N/A -902
BS886 S-70	N/A 186047	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.875 in200.03 mm	N/A 0.006 in0.15 mm	N/A -886
BS884 S-70	N/A 186048	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.625 in193.68 mm	N/A 0.006 in0.15 mm	N/A -884
BS882 S-70	N/A 186049	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.375 in187.33 mm	N/A 0.006 in0.15 mm	N/A -882
BS880 S-70	N/A 186050	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.125 in180.98 mm	N/A 0.006 in0.15 mm	N/A -880
BS878 S-70	N/A 186051	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.875 in174.63 mm	N/A 0.006 in0.15 mm	N/A -878
BS876 S-70	N/A 186052	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.625 in168.28 mm	N/A 0.006 in0.15 mm	N/A -876
BS874 S-70	N/A 186053	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.375 in161.93 mm	N/A 0.006 in0.15 mm	N/A -874
BS872 S-70	N/A 186054	N/A BS Standard O-Ring	N/A Silicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.125 in155.58 mm	N/A 0.006 in0.15 mm	N/A -872
BS870 S-70	N/A 186055	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.875 in149.23 mm	N/A 0.005 in0.13 mm	N/A -870
BS869 S-70	N/A 186056	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.75 in146.05 mm	N/A 0.005 in0.13 mm	N/A -869
BS868 S-70	N/A 186057	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.625 in142.88 mm	N/A 0.005 in0.13 mm	N/A -868
BS867 S-70	N/A 186058	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.5 in139.70 mm	N/A 0.005 in0.13 mm	N/A -867
BS866 S-70	N/A 186059	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.375 in136.53 mm	N/A 0.005 in0.13 mm	N/A -866
BS865 S-70	N/A 186060	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.25 in133.35 mm	N/A 0.005 in0.13 mm	N/A -865
BS864 S-70	N/A 186061	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.125 in130.18 mm	N/A 0.005 in0.13 mm	N/A -864
BS863 S-70	N/A 186062	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 5.000 in127.00 mm	N/A 0.005 in0.13 mm	N/A -863
BS862 S-70	N/A 186063	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 4.875 in123.83 mm	N/A 0.005 in0.13 mm	N/A -862
BS861 S-70	N/A 186064	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 4.75 in120.65 mm	N/A 0.005 in0.13 mm	N/A -861
BS860 S-70	N/A 186065	N/A BS Standard O-Ring	N/A Silicone	N/A 0.210 in5.33 mm	N/A 70	N/A 4.625 in117.48 mm	N/A 0.005 in0.13 mm	N/A -860
BS846 S-70	N/A 186066	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.937 in74.60 mm	N/A 0.004 in0.10 mm	N/A -846
BS845 S-70	N/A 186067	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.875 in73.03 mm	N/A 0.004 in0.10 mm	N/A -845
BS844 S-70	N/A 186068	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.813 in71.44 mm	N/A 0.004 in0.10 mm	N/A -844
BS843 S-70	N/A 186069	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.75 in69.85 mm	N/A 0.004 in0.10 mm	N/A -843

N/A
186045

N/A BS Standard O-Ring

N/A Silicone

N/A 0.064 in1.63 mm

N/A 70

N/A 0.301 in7.65 mm

N/A 0.003 in0.08 mm

N/A -903

BS902 S-70

N/A
186046

N/A BS Standard O-Ring

N/A Silicone

N/A 0.064 in1.63 mm

N/A 70

N/A 0.239 in6.07 mm

N/A 0.003 in0.08 mm

N/A -902

BS886 S-70

N/A
186047

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.875 in200.03 mm

N/A 0.006 in0.15 mm

N/A -886

BS884 S-70

N/A
186048

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.625 in193.68 mm

N/A 0.006 in0.15 mm

N/A -884

BS882 S-70

N/A
186049

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.375 in187.33 mm

N/A 0.006 in0.15 mm

N/A -882

BS880 S-70

N/A
186050

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.125 in180.98 mm

N/A 0.006 in0.15 mm

N/A -880

BS878 S-70

N/A
186051

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.875 in174.63 mm

N/A 0.006 in0.15 mm

N/A -878

BS876 S-70

N/A
186052

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.625 in168.28 mm

N/A 0.006 in0.15 mm

N/A -876

BS874 S-70

N/A
186053

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.375 in161.93 mm

N/A 0.006 in0.15 mm

N/A -874

BS872 S-70

N/A
186054

N/A BS Standard O-Ring

N/A Silicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.125 in155.58 mm

N/A 0.006 in0.15 mm

N/A -872

BS870 S-70

N/A
186055

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.875 in149.23 mm

N/A 0.005 in0.13 mm

N/A -870

BS869 S-70

N/A
186056

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.75 in146.05 mm

N/A 0.005 in0.13 mm

N/A -869

BS868 S-70

N/A
186057

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.625 in142.88 mm

N/A 0.005 in0.13 mm

N/A -868

BS867 S-70

N/A
186058

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.5 in139.70 mm

N/A 0.005 in0.13 mm

N/A -867

BS866 S-70

N/A
186059

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.375 in136.53 mm

N/A 0.005 in0.13 mm

N/A -866

BS865 S-70

N/A
186060

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.25 in133.35 mm

N/A 0.005 in0.13 mm

N/A -865

BS864 S-70

N/A
186061

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.125 in130.18 mm

N/A 0.005 in0.13 mm

N/A -864

BS863 S-70

N/A
186062

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 5.000 in127.00 mm

N/A 0.005 in0.13 mm

N/A -863

BS862 S-70

N/A
186063

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 4.875 in123.83 mm

N/A 0.005 in0.13 mm

N/A -862

BS861 S-70

N/A
186064

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 4.75 in120.65 mm

N/A 0.005 in0.13 mm

N/A -861

BS860 S-70

N/A
186065

N/A BS Standard O-Ring

N/A Silicone

N/A 0.210 in5.33 mm

N/A 70

N/A 4.625 in117.48 mm

N/A 0.005 in0.13 mm

N/A -860

BS846 S-70

N/A
186066

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.937 in74.60 mm

N/A 0.004 in0.10 mm

N/A -846

BS845 S-70

N/A
186067

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.875 in73.03 mm

N/A 0.004 in0.10 mm

N/A -845

BS844 S-70

N/A
186068

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.813 in71.44 mm

N/A 0.004 in0.10 mm

N/A -844

BS843 S-70

N/A
186069

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.75 in69.85 mm

N/A 0.004 in0.10 mm

N/A -843