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SAE AMS7274K

Действует
Rubber: Acrylonitrile-Butadiene (NBR) Engine Oil Resistance, 65 to 75 Hardness, for Seals in Aircraft Engine Oil Systems
This specification covers an acrylonitrile-butadiene (NBR) rubber in the form of molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications. For sheet, strip, tubing, extrusions, and molded shapes, use the AMS3XXX specification which is intended for that use.