241 Nitrile 90 Durometer Back-Up Ring
$5.01
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Back-up rings fit between O-rings and extrusion gaps to prevent the O-ring from extruding. Two back-up rings are often used (one on each side of O-ring) to prevent extrusion from either side based on direction of pressure. Application O-rings/seals with high pressures, large extrusion gaps, and/or high temperatures. Material BUNA Inside Diameter 3.881
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$4.73
$5.01
(+$0.28)