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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BS435 PTFE BS435 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189436 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 5.725 in145.42 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -435 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS434 PTFE BS434 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189437 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 5.75 in142.24 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -434 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS433 PTFE BS433 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189438 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 5.475 in139.07 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -433 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS432 PTFE BS432 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189439 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 5.350 in135.89 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -432 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS431 PTFE BS431 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189440 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 5.225 in132.72 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -431 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS430 PTFE BS430 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189441 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 5.100 in129.54 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -430 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS429 PTFE BS429 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189442 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 4.975 in126.37 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -429 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS428 PTFE BS428 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189443 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 4.850 in123.19 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -428 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS427 PTFE BS427 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189444 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 4.725 in120.02 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -427 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS426 PTFE BS426 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189445 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 4.75 in116.84 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -426 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS425 PTFE BS425 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189446 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.275 in6.99 mm | Inside Diameter N/A 4.475 in113.67 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -425 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS395 PTFE BS395 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189447 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 25.940 in658.88 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -395 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS394 PTFE BS394 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189448 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 24.940 in633.48 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -394 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS393 PTFE BS393 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189449 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 23.940 in758.08 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -393 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS392 PTFE BS392 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189450 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 22.940 in582.68 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -392 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS391 PTFE BS391 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189451 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 21.955 in557.66 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -391 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS390 PTFE BS390 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189452 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 20.955 in532.26 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -390 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS389 PTFE BS389 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189453 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 19.955 in506.86 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -389 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS388 PTFE BS388 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189454 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 18.955 in481.46 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -388 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS387 PTFE BS387 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189455 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 17.955 in456.06 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -387 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS386 PTFE BS386 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189456 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 16.955 in430.66 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -386 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS385 PTFE BS385 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189457 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 15.955 in405.26 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -385 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS384 PTFE BS384 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189458 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 14.975 in380.37 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -384 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS383 PTFE BS383 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189459 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 13.975 in354.97 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -383 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS382 PTFE BS382 PTFE/Asset/oring21.jpg |
IntegrationID
N/A 189460 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.210 in5.33 mm | Inside Diameter N/A 12.975 in329.57 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -382 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |