BS Perfluoroelastomer 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. Perfluoroelastomer is also known as FKKM and Perfloro.
Parts resist over 1,800 different chemicals, while offering the high temperature stability of PTFE (327°C). They’re used in aggressive chemical processing, pharmaceutical, oil rcovery, gas recovery, and aerospace applications. The proven, long-term performance of Kalrez® parts can mean less repairs, seal changes, inspections and equipment uptime for greater productivity and yield. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Parts resist over 1,800 different chemicals, while offering the high temperature stability of PTFE (327°C). They’re used in aggressive chemical processing, pharmaceutical, oil rcovery, gas recovery, and aerospace applications. The proven, long-term performance of Kalrez® parts can mean less repairs, seal changes, inspections and equipment uptime for greater productivity and yield. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Clear
Filter
Cross Section Width (in)
Cross Section Width (mm)
Durometer
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 |
---|---|---|---|---|---|---|---|---|---|---|
![]() | ||||||||||
BS348 KALREZ-75 |
IntegrationID
N/A 187642 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | 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. |
BS347 KALREZ-90 |
IntegrationID
N/A 188569 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 4.225 in107.32 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -347 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS347 KALREZ-70 |
IntegrationID
N/A 188106 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.225 in107.32 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -347 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS347 KALREZ-75 |
IntegrationID
N/A 187643 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 4.225 in107.32 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -347 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS346 KALREZ-90 |
IntegrationID
N/A 188570 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 4.100 in104.14 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -346 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS346 KALREZ-70 |
IntegrationID
N/A 188107 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.100 in104.14 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -346 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS346 KALREZ-75 |
IntegrationID
N/A 187644 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 4.100 in104.14 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -346 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS345 KALREZ-90 |
IntegrationID
N/A 188571 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.975 in100.97 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -345 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS345 KALREZ-70 |
IntegrationID
N/A 188108 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.975 in100.97 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -345 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS345 KALREZ-75 |
IntegrationID
N/A 187645 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 3.975 in100.97 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -345 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS344 KALREZ-90 |
IntegrationID
N/A 188572 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.850 in97.79 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -344 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS344 KALREZ-70 |
IntegrationID
N/A 188109 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.850 in97.79 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -344 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS344 KALREZ-75 |
IntegrationID
N/A 187646 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 3.850 in97.79 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -344 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS343 KALREZ-90 |
IntegrationID
N/A 188573 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.725 in94.62 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -343 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS343 KALREZ-70 |
IntegrationID
N/A 188110 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.725 in94.62 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -343 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS343 KALREZ-75 |
IntegrationID
N/A 187647 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 3.725 in94.62 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -343 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS342 KALREZ-90 |
IntegrationID
N/A 188574 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.75 in95.25 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -342 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS342 KALREZ-70 |
IntegrationID
N/A 188111 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.75 in95.25 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -342 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS342 KALREZ-75 |
IntegrationID
N/A 187648 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 3.75 in95.25 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -342 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS341 KALREZ-90 |
IntegrationID
N/A 188575 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.475 in88.27 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -341 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS341 KALREZ-70 |
IntegrationID
N/A 188112 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.475 in88.27 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -341 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS341 KALREZ-75 |
IntegrationID
N/A 187649 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 3.475 in88.27 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -341 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS340 KALREZ-90 |
IntegrationID
N/A 188576 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.350 in85.09 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -340 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS340 KALREZ-70 |
IntegrationID
N/A 188113 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.350 in85.09 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -340 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
BS340 KALREZ-75 |
IntegrationID
N/A 187650 |
Type N/A BS Standard O-Ring | Material N/A Perfluoroelastomer | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 75 | Inside Diameter N/A 3.350 in85.09 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -340 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |