BS Fluorosilicone 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.For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	CSW Tolerance	BS Number	Call for a Quote	O-Ring Industries
BS546 F-70	N/A 188923	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 4.86 in123.44 mm	N/A 0.003 in0.08 mm	N/A -546	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS544 F-70	N/A 188924	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 4.61 in117.09 mm	N/A 0.003 in0.08 mm	N/A -544	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS542 F-70	N/A 188925	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 4.36 in110.74 mm	N/A 0.003 in0.08 mm	N/A -542	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS540 F-70	N/A 188926	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 4.110 in104.39 mm	N/A 0.003 in0.08 mm	N/A -540	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS538 F-70	N/A 188927	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 3.86 in98.04 mm	N/A 0.003 in0.08 mm	N/A -538	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS536 F-70	N/A 188928	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 3.61 in91.69 mm	N/A 0.003 in0.08 mm	N/A -536	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS534 F-70	N/A 188929	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 3.36 in85.34 mm	N/A 0.003 in0.08 mm	N/A -534	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS532 F-70	N/A 188930	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 3.11 in78.99 mm	N/A 0.003 in0.08 mm	N/A -532	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS519 F-70	N/A 188931	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.553 in39.45 mm	N/A 0.003 in0.08 mm	N/A -519	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS517 F-70	N/A 188932	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.070 in1.78 mm	N/A 70	N/A 1.428 in36.27 mm	N/A 0.003 in0.08 mm	N/A -517	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS475 F-70	N/A 188933	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 25.9401 in658.88 mm	N/A 0.006 in0.15 mm	N/A -475	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS474 F-70	N/A 188934	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 24.940 in633.48 mm	N/A 0.006 in0.15 mm	N/A -474	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS473 F-70	N/A 188935	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 23.940 in608.08 mm	N/A 0.006 in0.15 mm	N/A -473	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS472 F-70	N/A 188936	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 22.940 in582.68 mm	N/A 0.006 in0.15 mm	N/A -472	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS471 F-70	N/A 188937	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 21.955 in557.66 mm	N/A 0.006 in0.15 mm	N/A -471	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS470 F-70	N/A 188938	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 20.955 in532.26 mm	N/A 0.006 in0.15 mm	N/A -470	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS469 F-70	N/A 188939	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 19.955 in506.86 mm	N/A 0.006 in0.15 mm	N/A -469	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS468 F-70	N/A 188940	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 19.455 in494.16 mm	N/A 0.006 in0.15 mm	N/A -468	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS467 F-70	N/A 188941	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 18.955 in481.46 mm	N/A 0.006 in0.15 mm	N/A -467	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS466 F-70	N/A 188942	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 18.455 in468.76 mm	N/A 0.006 in0.15 mm	N/A -466	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS465 F-70	N/A 188943	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 17.955 in456.06 mm	N/A 0.006 in0.15 mm	N/A -465	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS464 F-70	N/A 188944	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 17.455 in443.36 mm	N/A 0.006 in0.15 mm	N/A -464	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS463 F-70	N/A 188945	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 16.9551 in430.66 mm	N/A 0.006 in0.15 mm	N/A -463	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS462 F-70	N/A 188946	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 16.455 in417.96 mm	N/A 0.006 in0.15 mm	N/A -462	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS461 F-70	N/A 188947	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 15.9551 in405.26 mm	N/A 0.006 in0.15 mm	N/A -461	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

N/A
188923

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 4.86 in123.44 mm

N/A 0.003 in0.08 mm

N/A -546

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS544 F-70

N/A
188924

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 4.61 in117.09 mm

N/A 0.003 in0.08 mm

N/A -544

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS542 F-70

N/A
188925

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 4.36 in110.74 mm

N/A 0.003 in0.08 mm

N/A -542

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS540 F-70

N/A
188926

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 4.110 in104.39 mm

N/A 0.003 in0.08 mm

N/A -540

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS538 F-70

N/A
188927

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 3.86 in98.04 mm

N/A 0.003 in0.08 mm

N/A -538

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS536 F-70

N/A
188928

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 3.61 in91.69 mm

N/A 0.003 in0.08 mm

N/A -536

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS534 F-70

N/A
188929

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 3.36 in85.34 mm

N/A 0.003 in0.08 mm

N/A -534

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS532 F-70

N/A
188930

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 3.11 in78.99 mm

N/A 0.003 in0.08 mm

N/A -532

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS519 F-70

N/A
188931

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.553 in39.45 mm

N/A 0.003 in0.08 mm

N/A -519

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS517 F-70

N/A
188932

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.070 in1.78 mm

N/A 70

N/A 1.428 in36.27 mm

N/A 0.003 in0.08 mm

N/A -517

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS475 F-70

N/A
188933

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 25.9401 in658.88 mm

N/A 0.006 in0.15 mm

N/A -475

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS474 F-70

N/A
188934

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 24.940 in633.48 mm

N/A 0.006 in0.15 mm

N/A -474

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS473 F-70

N/A
188935

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 23.940 in608.08 mm

N/A 0.006 in0.15 mm

N/A -473

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS472 F-70

N/A
188936

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 22.940 in582.68 mm

N/A 0.006 in0.15 mm

N/A -472

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS471 F-70

N/A
188937

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 21.955 in557.66 mm

N/A 0.006 in0.15 mm

N/A -471

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS470 F-70

N/A
188938

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 20.955 in532.26 mm

N/A 0.006 in0.15 mm

N/A -470

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS469 F-70

N/A
188939

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 19.955 in506.86 mm

N/A 0.006 in0.15 mm

N/A -469

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS468 F-70

N/A
188940

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 19.455 in494.16 mm

N/A 0.006 in0.15 mm

N/A -468

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS467 F-70

N/A
188941

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 18.955 in481.46 mm

N/A 0.006 in0.15 mm

N/A -467

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS466 F-70

N/A
188942

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 18.455 in468.76 mm

N/A 0.006 in0.15 mm

N/A -466

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS465 F-70

N/A
188943

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 17.955 in456.06 mm

N/A 0.006 in0.15 mm

N/A -465

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS464 F-70

N/A
188944

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 17.455 in443.36 mm

N/A 0.006 in0.15 mm

N/A -464

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS463 F-70

N/A
188945

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 16.9551 in430.66 mm

N/A 0.006 in0.15 mm

N/A -463

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS462 F-70

N/A
188946

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 16.455 in417.96 mm

N/A 0.006 in0.15 mm

N/A -462

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

BS461 F-70

N/A
188947

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 15.9551 in405.26 mm

N/A 0.006 in0.15 mm

N/A -461

N/A

N/A O-rings are used in the military, automotive, aerospace and agriculture industries.