BS Polyurethane 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. Polyurethane is also known as urethane, cast urethan and millable urethane.
Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards. 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)
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 |
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BS254 U-70 BS254 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182891 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.484 in139.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -254 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS254 U-90 BS254 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182892 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 5.484 in139.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -254 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries.v |
BS253 U-70 BS253 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182893 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.359 in136.12 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -253 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS253 U-90 BS253 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182894 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 5.359 in136.12 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -253 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS252 U-70 BS252 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182895 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.234 in132.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -252 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS252 U-90 BS252 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182896 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 5.234 in132.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -252 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS251 U-70 BS251 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182897 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.109 in129.77 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -251 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS251 U-90 BS251 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182898 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 5.109 in129.77 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -251 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS250 U-70 BS250 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182899 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 4.984 in126.59 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -250 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS250 U-90 BS250 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182900 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 4.984 in126.59 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -250 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS249 U-70 BS249 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182901 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 4.859 in123.42 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -249 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS249 U-90 BS249 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182902 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 4.859 in123.42 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -249 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS248 U-70 BS248 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182903 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | 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 defense and agriculture industries. |
BS248 U-90 BS248 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182904 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | 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 defense and agriculture industries. |
BS247 U-70 BS247 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182905 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 4.609 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 defense and agriculture industries. |
BS247 U-90 BS247 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182906 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 4.609 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 defense and agriculture industries.v |
BS246 U-70 BS246 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182907 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | 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 defense and agriculture industries. |
BS246 U-90 BS246 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182908 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | 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 defense and agriculture industries. |
BS245 U-70 BS245 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182909 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | 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 defense and agriculture industries. |
BS245 U-90 BS245 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182910 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | 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 defense and agriculture industries. |
BS244 U-70 BS244 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182911 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 4.234 in107.54 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -244 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS244 U-90 BS244 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182912 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 4.234 in107.54 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -244 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS243 U-70 BS243 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182913 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 4.109 in104.37 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -243 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS243 U-90 BS243 U-90/Asset/oring21.jpg |
IntegrationID
N/A 182914 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 4.109 in104.37 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -243 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
BS242 U-70 BS242 U-70/Asset/oring21.jpg |
IntegrationID
N/A 182915 |
Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 3.984 in101.19 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -242 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |