Product Code:SAE AMS7256 Title:Rings, Sealing, Tetrafluoroethylene/Propylene Rubber (Fepm) Hydraulic Fluid and Synthetic Oil Resistant 85 to 95 Issuing Committee:Ams Ce Elastomers Committee Scope:This specification covers a tetrafluoroethylene/propylene rubber (FEPM) in the form of molded rings.