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	Product Guides
BS31 S-70	N/A 186470	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.739 in44.17 mm	N/A 0.003 in0.08 mm	N/A -031	N/A Seal Guides
BS30 S-70	N/A 186471	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.614 in41.00 mm	N/A 0.003 in0.08 mm	N/A -030	N/A Seal Guides
BS29 S-70	N/A 186472	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.489 in37.82 mm	N/A 0.003 in0.08 mm	N/A -029	N/A Seal Guides
BS28 S-70	N/A 186473	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.364 in34.65 mm	N/A 0.003 in0.08 mm	N/A -028	N/A Seal Guides
BS27 S-70	N/A 186474	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.301 in33.05 mm	N/A 0.003 in0.08 mm	N/A -027	N/A Seal Guides
BS26 S-70	N/A 186475	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.239 in31.47 mm	N/A 0.003 in0.08 mm	N/A -026	N/A Seal Guides
BS25 S-70	N/A 186476	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.176 in29.87 mm	N/A 0.003 in0.08 mm	N/A -025	N/A Seal Guides
BS24 S-70	N/A 186477	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.114 in28.30 mm	N/A 0.003 in0.08 mm	N/A -024	N/A Seal Guides
BS23 S-70	N/A 186478	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.051 in26.70 mm	N/A 0.003 in0.08 mm	N/A -023	N/A Seal Guides
BS22 S-70	N/A 186479	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.989 in25.12 mm	N/A 0.003 in0.08 mm	N/A -022	N/A Seal Guides
BS21 S-70	N/A 186480	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.926 in23.52 mm	N/A 0.003 in0.08 mm	N/A -021	N/A Seal Guides
BS20 S-70	N/A 186481	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.864 in21.95 mm	N/A 0.003 in0.08 mm	N/A -020	N/A Seal Guides
BS19 S-70	N/A 186482	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.801 in20.35 mm	N/A 0.003 in0.08 mm	N/A -019	N/A Seal Guides
BS18 S-70	N/A 186483	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.739 in18.77 mm	N/A 0.003 in0.08 mm	N/A -018	N/A Seal Guides
BS17 S-70	N/A 186484	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.676 in17.17 mm	N/A 0.003 in0.08 mm	N/A -017	N/A Seal Guides
BS16 S-70	N/A 186485	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.614 in15.6 mm	N/A 0.003 in0.08 mm	N/A -016	N/A Seal Guides
BS15 S-70	N/A 186486	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.551 in14.00 mm	N/A 0.003 in0.08 mm	N/A -015	N/A Seal Guides
BS14 S-70	N/A 186487	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.489 in12.42 mm	N/A 0.003 in0.08 mm	N/A -014	N/A Seal Guides
BS13 S-70	N/A 186488	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.426 in10.82 mm	N/A 0.003 in0.08 mm	N/A -013	N/A Seal Guides
BS12 S-70	N/A 186489	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.364 in9.25 mm	N/A 0.003 in0.08 mm	N/A -012	N/A Seal Guides
BS11 S-70	N/A 186490	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.301 in7.65 mm	N/A 0.003 in0.08 mm	N/A -011	N/A Seal Guides
BS10 S-70	N/A 186491	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.239 in6.07 mm	N/A 0.003 in0.08 mm	N/A -010	N/A Seal Guides
BS9 S-70	N/A 186492	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.208 in5.28 mm	N/A 0.003 in0.08 mm	N/A -009	N/A Seal Guides
BS8 S-70	N/A 186493	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.176 in4.47 mm	N/A 0.003 in0.08 mm	N/A -008	N/A Seal Guides
BS7 S-70	N/A 186494	N/A BS Standard O-Ring	N/A Silicone	N/A 0.070 in1.78 mm	N/A 70	N/A 0.145 in3.68 mm	N/A 0.003 in0.08 mm	N/A -007	N/A Seal Guides

N/A
186470

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.739 in44.17 mm

N/A 0.003 in0.08 mm

N/A -031

N/A Seal Guides

BS30 S-70

N/A
186471

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.614 in41.00 mm

N/A 0.003 in0.08 mm

N/A -030

N/A Seal Guides

BS29 S-70

N/A
186472

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.489 in37.82 mm

N/A 0.003 in0.08 mm

N/A -029

N/A Seal Guides

BS28 S-70

N/A
186473

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.364 in34.65 mm

N/A 0.003 in0.08 mm

N/A -028

N/A Seal Guides

BS27 S-70

N/A
186474

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.301 in33.05 mm

N/A 0.003 in0.08 mm

N/A -027

N/A Seal Guides

BS26 S-70

N/A
186475

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.239 in31.47 mm

N/A 0.003 in0.08 mm

N/A -026

N/A Seal Guides

BS25 S-70

N/A
186476

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.176 in29.87 mm

N/A 0.003 in0.08 mm

N/A -025

N/A Seal Guides

BS24 S-70

N/A
186477

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.114 in28.30 mm

N/A 0.003 in0.08 mm

N/A -024

N/A Seal Guides

BS23 S-70

N/A
186478

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.051 in26.70 mm

N/A 0.003 in0.08 mm

N/A -023

N/A Seal Guides

BS22 S-70

N/A
186479

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.989 in25.12 mm

N/A 0.003 in0.08 mm

N/A -022

N/A Seal Guides

BS21 S-70

N/A
186480

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.926 in23.52 mm

N/A 0.003 in0.08 mm

N/A -021

N/A Seal Guides

BS20 S-70

N/A
186481

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.864 in21.95 mm

N/A 0.003 in0.08 mm

N/A -020

N/A Seal Guides

BS19 S-70

N/A
186482

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.801 in20.35 mm

N/A 0.003 in0.08 mm

N/A -019

N/A Seal Guides

BS18 S-70

N/A
186483

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.739 in18.77 mm

N/A 0.003 in0.08 mm

N/A -018

N/A Seal Guides

BS17 S-70

N/A
186484

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.676 in17.17 mm

N/A 0.003 in0.08 mm

N/A -017

N/A Seal Guides

BS16 S-70

N/A
186485

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.614 in15.6 mm

N/A 0.003 in0.08 mm

N/A -016

N/A Seal Guides

BS15 S-70

N/A
186486

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.551 in14.00 mm

N/A 0.003 in0.08 mm

N/A -015

N/A Seal Guides

BS14 S-70

N/A
186487

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.489 in12.42 mm

N/A 0.003 in0.08 mm

N/A -014

N/A Seal Guides

BS13 S-70

N/A
186488

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.426 in10.82 mm

N/A 0.003 in0.08 mm

N/A -013

N/A Seal Guides

BS12 S-70

N/A
186489

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.364 in9.25 mm

N/A 0.003 in0.08 mm

N/A -012

N/A Seal Guides

BS11 S-70

N/A
186490

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.301 in7.65 mm

N/A 0.003 in0.08 mm

N/A -011

N/A Seal Guides

BS10 S-70

N/A
186491

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.239 in6.07 mm

N/A 0.003 in0.08 mm

N/A -010

N/A Seal Guides

BS9 S-70

N/A
186492

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.208 in5.28 mm

N/A 0.003 in0.08 mm

N/A -009

N/A Seal Guides

BS8 S-70

N/A
186493

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.176 in4.47 mm

N/A 0.003 in0.08 mm

N/A -008

N/A Seal Guides

BS7 S-70

N/A
186494

N/A BS Standard O-Ring

N/A Silicone

N/A 0.070 in1.78 mm

N/A 70

N/A 0.145 in3.68 mm

N/A 0.003 in0.08 mm

N/A -007

N/A Seal Guides