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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BS156 PTFE |
IntegrationID
N/A 189637 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.103 in2.62 mm | Inside Diameter N/A 4.237 in107.62 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -156 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS46 PTFE |
IntegrationID
N/A 189696 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.070 in1.78 mm | Inside Diameter N/A 4.239 in107.67 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -046 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS623 PTFE |
IntegrationID
N/A 189357 |
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 4.313 in109.54 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -623 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS348 PTFE |
IntegrationID
N/A 189494 |
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 4.350 in110.49 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -348 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS245 PTFE |
IntegrationID
N/A 189570 |
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 4.359 in110.72 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -245 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS542 PTFE |
IntegrationID
N/A 189388 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.070 in1.78 mm | Inside Diameter N/A 4.36 in110.74 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -542 | 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 |
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. |
BS349 PTFE |
IntegrationID
N/A 189493 |
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 4.475 in113.67 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -349 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS246 PTFE |
IntegrationID
N/A 189569 |
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 4.484 in113.89 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -246 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS157 PTFE |
IntegrationID
N/A 189636 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.103 in2.62 mm | Inside Diameter N/A 4.487 in113.97 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -157 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS47 PTFE |
IntegrationID
N/A 189695 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.070 in1.78 mm | Inside Diameter N/A 4.489 in114.02 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -047 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS624 PTFE |
IntegrationID
N/A 189356 |
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 4.516 in114.71 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -624 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS350 PTFE |
IntegrationID
N/A 189492 |
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 4.6 in116.84 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -350 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS544 PTFE |
IntegrationID
N/A 189387 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.070 in1.78 mm | Inside Diameter N/A 4.61 in117.09 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -544 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS875 PTFE |
IntegrationID
N/A 189306 |
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 4.625 in117.48 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -875 | 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 |
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. |
BS351 PTFE |
IntegrationID
N/A 189491 |
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 4.725 in120.02 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -351 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS248 PTFE |
IntegrationID
N/A 189567 |
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 4.734 in120.24 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -248 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS158 PTFE |
IntegrationID
N/A 189635 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.103 in2.62 mm | Inside Diameter N/A 4.737 in120.32 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -158 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS48 PTFE |
IntegrationID
N/A 189694 |
Type N/A BS Standard O-Ring | Material N/A PTFE | Cross Section Width N/A 0.070 in1.78 mm | Inside Diameter N/A 4.739 in120.37 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -048 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS861 PTFE |
IntegrationID
N/A 189305 |
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 4.75 in120.65 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -861 | 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 |
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. |
BS247 PTFE |
IntegrationID
N/A 189568 |
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 4.759 in117.07 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -247 | 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 |
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. |
BS352 PTFE |
IntegrationID
N/A 189490 |
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 4.850 in123.19 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -352 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |