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. Viton is also known as: Fluorocarbon and FKM. Viton® is a registered trademarks of DuPont® Dow Elastomers.

A fluoroelastomer compound with a combination of exceptional mechanical properties and compression set resistance. This particular energizer gives an O-ring excellent memory and the ability to recover rapidly from deformation. This core has a Shore A hardness of 75 with a suggested operating temperature range of -10°F to +300°F (-23°C to +150°C) in encapsulated applications. 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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O-Ring Industries

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N/A
185128
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 6.125 in155.58 mm N/A 0.006 in0.15 mm N/A -872 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185129
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.875 in149.23 mm N/A 0.005 in0.13 mm N/A -870 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185131
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.625 in142.88 mm N/A 0.005 in0.13 mm N/A -868 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185132
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.5 in139.70 mm N/A 0.005 in0.13 mm N/A -867 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185133
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.375 in136.53 mm N/A 0.005 in0.13 mm N/A -866 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185134
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.25 in133.35 mm N/A 0.005 in0.13 mm N/A -865 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185135
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.125 in130.18 mm N/A 0.005 in0.13 mm N/A -864 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185136
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 5.000 in127.00 mm N/A 0.005 in0.13 mm N/A -863 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185137
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 4.875 in123.83 mm N/A 0.005 in0.13 mm N/A -862 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185138
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 4.75 in120.65 mm N/A 0.005 in0.13 mm N/A -861 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185139
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 4.625 in117.48 mm N/A 0.005 in0.13 mm N/A -860 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185140
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.937 in74.60 mm N/A 0.004 in0.10 mm N/A -846 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185141
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.875 in73.03 mm N/A 0.004 in0.10 mm N/A -845 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185143
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.75 in69.85 mm N/A 0.004 in0.10 mm N/A -843 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185144
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.687 in68.25 mm N/A 0.004 in0.10 mm N/A -842 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185145
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.625 in66.68 mm N/A 0.004 in0.10 mm N/A -841 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185146
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.563 in65.1 mm N/A 0.004 in0.10 mm N/A -840 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185147
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.500 in63.50 mm N/A 0.004 in0.10 mm N/A -839 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185148
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.437 in61.90 mm N/A 0.004 in0.10 mm N/A -838 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185149
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.375 in60.33 mm N/A 0.004 in0.10 mm N/A -837 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185150
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.313 in58.74 mm N/A 0.004 in0.10 mm N/A -836 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185151
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.25 in57.15 mm N/A 0.004 in0.10 mm N/A -835 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185152
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.187 in55.55 mm N/A 0.004 in0.10 mm N/A -834 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185153
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.125 in53.98 mm N/A 0.004 in0.10 mm N/A -833 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185154
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 2.063 in52.39 mm N/A 0.004 in0.10 mm N/A -832 N/A N/A O-rings are used in the military defense and agriculture industries.
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