245 Nitrile 90 Durometer Back-Up Ring

  • $5.55

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. Inside Diameter 4.381'' Width 0.118''
Material BUNA Thickness 0.050''

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