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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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