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.
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O-Ring Industries

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N/A
182578
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 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 defense and agriculture industries.v
N/A
182677
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 18.955 in481.46 mm N/A 0.005 in0.13 mm N/A -388 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182678
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 18.955 in481.46 mm N/A 0.005 in0.13 mm N/A -388 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182575
N/A BS Standard O-Ring N/A Polyurethane 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 defense and agriculture industries.
N/A
182576
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 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 defense and agriculture industries.
N/A
182573
N/A BS Standard O-Ring N/A Polyurethane 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 defense and agriculture industries.
N/A
182574
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 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 defense and agriculture industries.
N/A
182675
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 19.955 in506.86 mm N/A 0.005 in0.13 mm N/A -389 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
182676
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 19.955 in506.86 mm N/A 0.005 in0.13 mm N/A -389 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182413
N/A BS Standard O-Ring N/A Polyurethane 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 defense and agriculture industries.
N/A
182414
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 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 defense and agriculture industries.v
N/A
183081
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.050 in52.07 mm N/A 0.003 in0.08 mm N/A -137 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183082
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.050 in52.07 mm N/A 0.003 in0.08 mm N/A -137 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182411
N/A BS Standard O-Ring N/A Polyurethane 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 defense and agriculture industries.
N/A
182412
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 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.
N/A
182793
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.100 in53.34 mm N/A 0.005 in0.13 mm N/A -330 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182794
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.100 in53.34 mm N/A 0.005 in0.13 mm N/A -330 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182945
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.109 in53.57 mm N/A 0.004 in0.10 mm N/A -227 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182946
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.109 in53.57 mm N/A 0.004 in0.10 mm N/A -227 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183079
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.112 in53.64 mm N/A 0.003 in0.08 mm N/A -138 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183080
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.112 in53.64 mm N/A 0.003 in0.08 mm N/A -138 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183185
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 2.114 in53.70 mm N/A 0.003 in0.08 mm N/A -034 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183186
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 2.114 in53.70 mm N/A 0.003 in0.08 mm N/A -034 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182409
N/A BS Standard O-Ring N/A Polyurethane 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 defense and agriculture industries.
N/A
182410
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 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.
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