• 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.

This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C). 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
186082 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 N/A 1.937 in49.20 mm N/A 0.004 in0.10 mm N/A -830 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
186081 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 N/A 2.000 in50.80 mm N/A 0.004 in0.10 mm N/A -831 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
186080 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186079 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
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186078 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186077 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186076 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
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186075 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
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186074 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186073 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186072 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186071 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186070 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186069 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186068 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 N/A 2.813 in71.44 mm N/A 0.004 in0.10 mm N/A -844 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
186067 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186066 		N/A BS Standard O-Ring N/A Silicone N/A 0.139 in3.53 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186065 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186064 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186063 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186062 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186061 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186060 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186059 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
N/A
186058 		N/A BS Standard O-Ring N/A Silicone N/A 0.210 in5.33 mm N/A 70 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, automotive, aerospace and agriculture industries.
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