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
BS229 S-70	N/A 186345	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.359 in59.92 mm	N/A 0.004 in0.10 mm	N/A -229
BS228 S-70	N/A 186346	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.234 in56.74 mm	N/A 0.004 in0.10 mm	N/A -228
BS227 S-70	N/A 186347	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 2.109 in53.57 mm	N/A 0.004 in0.10 mm	N/A -227
BS226 S-70	N/A 186348	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.984 in50.39 mm	N/A 0.004 in0.10 mm	N/A -226
BS225 S-70	N/A 186349	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.859 in47.22 mm	N/A 0.004 in0.10 mm	N/A -225
BS224 S-70	N/A 186350	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.734 in44.04 mm	N/A 0.004 in0.10 mm	N/A -224
BS223 S-70	N/A 186351	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.609 in40.87 mm	N/A 0.004 in0.10 mm	N/A -223
BS222 S-70	N/A 186352	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.484 in37.69 mm	N/A 0.004 in0.10 mm	N/A -222
BS221 S-70	N/A 186353	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.421 in36.09 mm	N/A 0.004 in0.10 mm	N/A -221
BS220 S-70	N/A 186354	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.359 in34.52 mm	N/A 0.004 in0.10 mm	N/A -220
BS219 S-70	N/A 186355	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.296 in32.92 mm	N/A 0.004 in0.10 mm	N/A -219
BS218 S-70	N/A 186356	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.234 in31.34 mm	N/A 0.004 in0.10 mm	N/A -218
BS217 S-70	N/A 186357	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.171 in29.74 mm	N/A 0.004 in0.10 mm	N/A -217
BS216 S-70	N/A 186358	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.109 in28.17 mm	N/A 0.004 in0.10 mm	N/A -216
BS215 S-70	N/A 186359	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 1.046 in26.57 mm	N/A 0.004 in0.10 mm	N/A -215
BS214 S-70	N/A 186360	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.984 in24.99 mm	N/A 0.004 in0.10 mm	N/A -214
BS213 S-70	N/A 186361	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.921 in23.39 mm	N/A 0.004 in0.10 mm	N/A -213
BS212 S-70	N/A 186362	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.859 in21.82 mm	N/A 0.004 in0.10 mm	N/A -212
BS211 S-70	N/A 186363	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.796 in20.22 mm	N/A 0.004 in0.10 mm	N/A -211
BS210 S-70	N/A 186364	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.734 in18.64 mm	N/A 0.004 in0.10 mm	N/A -210
BS209 S-70	N/A 186365	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.672 in17.07 mm	N/A 0.004 in0.10 mm	N/A -209
BS208 S-70	N/A 186366	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.609 in15.47 mm	N/A 0.004 in0.10 mm	N/A -208
BS207 S-70	N/A 186367	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.549 in13.94 mm	N/A 0.004 in0.10 mm	N/A -207
BS206 S-70	N/A 186368	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.484 in12.29 mm	N/A 0.004 in0.10 mm	N/A -206
BS205 S-70	N/A 186369	N/A BS Standard O-Ring	N/A Silicone	N/A 0.139 in3.53 mm	N/A 70	N/A 0.421 in10.69 mm	N/A 0.004 in0.10 mm	N/A -205

N/A
186345

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.359 in59.92 mm

N/A 0.004 in0.10 mm

N/A -229

BS228 S-70

N/A
186346

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.234 in56.74 mm

N/A 0.004 in0.10 mm

N/A -228

BS227 S-70

N/A
186347

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 2.109 in53.57 mm

N/A 0.004 in0.10 mm

N/A -227

BS226 S-70

N/A
186348

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.984 in50.39 mm

N/A 0.004 in0.10 mm

N/A -226

BS225 S-70

N/A
186349

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.859 in47.22 mm

N/A 0.004 in0.10 mm

N/A -225

BS224 S-70

N/A
186350

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.734 in44.04 mm

N/A 0.004 in0.10 mm

N/A -224

BS223 S-70

N/A
186351

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.609 in40.87 mm

N/A 0.004 in0.10 mm

N/A -223

BS222 S-70

N/A
186352

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.484 in37.69 mm

N/A 0.004 in0.10 mm

N/A -222

BS221 S-70

N/A
186353

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.421 in36.09 mm

N/A 0.004 in0.10 mm

N/A -221

BS220 S-70

N/A
186354

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.359 in34.52 mm

N/A 0.004 in0.10 mm

N/A -220

BS219 S-70

N/A
186355

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.296 in32.92 mm

N/A 0.004 in0.10 mm

N/A -219

BS218 S-70

N/A
186356

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.234 in31.34 mm

N/A 0.004 in0.10 mm

N/A -218

BS217 S-70

N/A
186357

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.171 in29.74 mm

N/A 0.004 in0.10 mm

N/A -217

BS216 S-70

N/A
186358

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.109 in28.17 mm

N/A 0.004 in0.10 mm

N/A -216

BS215 S-70

N/A
186359

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 1.046 in26.57 mm

N/A 0.004 in0.10 mm

N/A -215

BS214 S-70

N/A
186360

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.984 in24.99 mm

N/A 0.004 in0.10 mm

N/A -214

BS213 S-70

N/A
186361

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.921 in23.39 mm

N/A 0.004 in0.10 mm

N/A -213

BS212 S-70

N/A
186362

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.859 in21.82 mm

N/A 0.004 in0.10 mm

N/A -212

BS211 S-70

N/A
186363

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.796 in20.22 mm

N/A 0.004 in0.10 mm

N/A -211

BS210 S-70

N/A
186364

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.734 in18.64 mm

N/A 0.004 in0.10 mm

N/A -210

BS209 S-70

N/A
186365

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.672 in17.07 mm

N/A 0.004 in0.10 mm

N/A -209

BS208 S-70

N/A
186366

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.609 in15.47 mm

N/A 0.004 in0.10 mm

N/A -208

BS207 S-70

N/A
186367

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.549 in13.94 mm

N/A 0.004 in0.10 mm

N/A -207

BS206 S-70

N/A
186368

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.484 in12.29 mm

N/A 0.004 in0.10 mm

N/A -206

BS205 S-70

N/A
186369

N/A BS Standard O-Ring

N/A Silicone

N/A 0.139 in3.53 mm

N/A 70

N/A 0.421 in10.69 mm

N/A 0.004 in0.10 mm

N/A -205