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.
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BS O-Rings

BS Fluorosilicone O-Rings
BS O-Rings

BS Fluorosilicone O-Rings
BS O-Rings

BS Fluorosilicone O-Rings
BS O-Rings

BS Fluorosilicone O-Rings
BS O-Rings

BS Fluorosilicone O-Rings
Type N/A BS Standard O-Ring
Material
N/A Flurosilicone
Cross Section Width
N/A 0.064 in1.63 mm N/A 0.064 in1.63 mm N/A 0.275 in6.99 mm N/A 0.275 in6.99 mm N/A 0.275 in6.99 mm
Durometer
N/A 70
Inside Diameter
N/A 0.301 in7.65 mm N/A 0.239 in6.07 mm N/A 7.875 in200.03 mm N/A 7.625 in193.68 mm N/A 7.375 in187.33 mm
CSW Tolerance N/A 0.003 in0.08 mm N/A 0.003 in0.08 mm N/A 0.006 in0.15 mm N/A 0.006 in0.15 mm N/A 0.006 in0.15 mm
BS Number N/A -903 N/A -902 N/A -886 N/A -884 N/A -882
Call for a Quote N/A
O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries.