BS Silicone O-Rings
BS O-Rings
British Standard O-Rings are very similar to Standard O-Rings in the fact that they are both standardized imperically. The British Standard however, incorporates some extended sizes in the 1/4" nominal cross section group for an even broader application range. British Standard O-Rings serve a variety of industries including aerospace, paint, food, and chemical transport.
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C). For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C). For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
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Cross Section Width (in)
Cross Section Width (mm)
Inside Diameter (in)
Inside Diameter (mm)
Item # |
IntegrationID |
Type |
Material |
Cross Section Width |
Durometer |
Inside Diameter |
CSW Tolerance |
BS Number |
Call for a Quote |
O-Ring Industries |
---|---|---|---|---|---|---|---|---|---|---|
BS17 S-70 |
IntegrationID
N/A 186484 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 0.676 in17.17 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -017 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS170 S-70 |
IntegrationID
N/A 186382 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 7.737 in196.52 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -170 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS171 S-70 |
IntegrationID
N/A 186381 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 7.987 in202.87 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -171 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS172 S-70 |
IntegrationID
N/A 186380 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.237 in209.22 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -172 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS173 S-70 |
IntegrationID
N/A 186379 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.487 in215.57 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -173 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS174 S-70 |
IntegrationID
N/A 186378 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.737 in221.92 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -174 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS175 S-70 |
IntegrationID
N/A 186377 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.987 in228.27 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -175 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS176 S-70 |
IntegrationID
N/A 186376 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 9.237 in234.62 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -176 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS177 S-70 |
IntegrationID
N/A 186375 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 9.487 in240.97 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -177 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS178 S-70 |
IntegrationID
N/A 186374 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 9.737 in247.32 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -178 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS18 S-70 |
IntegrationID
N/A 186483 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 0.739 in18.77 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -018 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS19 S-70 |
IntegrationID
N/A 186482 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 0.801 in20.35 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -019 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS2 S-70 |
IntegrationID
N/A 186499 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.050 in1.27 mm | Durometer N/A 70 | Inside Diameter N/A 0.042 in1.07 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -002 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS20 S-70 |
IntegrationID
N/A 186481 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 0.864 in21.95 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -020 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS201 S-70 |
IntegrationID
N/A 186373 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.171 in4.34 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -201 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS202 S-70 |
IntegrationID
N/A 186372 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.234 in5.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -202 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS203 S-70 |
IntegrationID
N/A 186371 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.296 in7.52 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -203 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS204 S-70 |
IntegrationID
N/A 186370 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.359 in9.12 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -204 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS205 S-70 |
IntegrationID
N/A 186369 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.421 in10.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -205 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS206 S-70 |
IntegrationID
N/A 186368 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.484 in12.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -206 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS207 S-70 |
IntegrationID
N/A 186367 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.549 in13.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -207 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS208 S-70 |
IntegrationID
N/A 186366 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.609 in15.47 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -208 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS209 S-70 |
IntegrationID
N/A 186365 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.672 in17.07 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -209 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS21 S-70 |
IntegrationID
N/A 186480 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 0.926 in23.52 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -021 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS210 S-70 |
IntegrationID
N/A 186364 |
Type N/A BS Standard O-Ring | Material N/A Silicone | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.734 in18.64 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -210 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |