BS PTFE 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. PTFE is also known as TFE and Polytetrafluoroethylene. 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 |
Inside Diameter |
CSW Tolerance |
BS Number |
Call for a Quote |
O-Ring Industries |
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BS279 PTFE BS279 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189536 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 12.984 in329.79 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -279 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS278 PTFE BS278 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189537 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 11.984 in304.39 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -278 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS277 PTFE BS277 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189538 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 11.484 in291.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -277 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS276 PTFE BS276 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189539 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 10.984 in278.99 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -276 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS275 PTFE BS275 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189540 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 10.484 in266.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -275 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS274 PTFE BS274 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189541 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 9.984 in253.59 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -274 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS273 PTFE BS273 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189542 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 9.734 in247.24 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -273 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS272 PTFE BS272 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189543 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 9.484 in240.89 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -272 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS271 PTFE BS271 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189544 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 9.234 in234.54 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -271 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS270 PTFE BS270 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189545 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 8.984 in228.19 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -270 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS269 PTFE BS269 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189546 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 8.734 in221.84 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -269 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS268 PTFE BS268 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189547 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 8.484 in215.49 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -268 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS267 PTFE BS267 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189548 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 8.234 in209.14 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -267 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS266 PTFE BS266 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189549 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 7.984 in202.79 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -266 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS265 PTFE BS265 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189550 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 7.734 in196.44 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -265 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS264 PTFE BS264 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189551 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 7.484 in190.09 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -264 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS263 PTFE BS263 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189552 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 7.234 in183.74 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -263 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS262 PTFE BS262 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189553 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 6.984 in177.39 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -262 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS261 PTFE BS261 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189554 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 6.734 in171.04 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -261 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS275 PTFE BS275 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189555 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 6.484 in164.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -275 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS259 PTFE BS259 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189556 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 6.234 in158.34 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -259 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS258 PTFE BS258 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189557 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 5.984 in151.99 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -258 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS257 PTFE BS257 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189558 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 5.859 in148.82 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -257 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS256 PTFE BS256 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189559 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 5.734 in145.64 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -256 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS255 PTFE BS255 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189560 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.139 in3.53 mm | Inside Diameter N/A 5.759 in142.47 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -255 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |