The purpose of this specification sheet is to set up a standardized part numbering system for o-rings procured to MIL-R-83248, Class 2 (90 ± 5 hardness).
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Rubber, Fluorocarbon Elastomer, High Temperature, Fluid and Compression Set Resistant (O-Rings, Class 1, 75 Hardness)
Acrylonitrile Butadiene (NBR) Rubber Aromatic Fuel Resistant 55 - 65
Retainers, (Back-Up Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Static Gland
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