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SAE AMS 7338A-2019
Rubber: Butyl (IIR Abbreviation), Phosphate Ester Resistant, 65 to 75 Hardness, for Seals in Hydraulic Systems, etc.
This specification covers a butyl rubber in the form of molded rings, compression seals, o-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications. As AMS3238 is no longer valid for O-rings. For O-rings, the requirements of AMS7338 shall be met wherever AMS3238 is specified.
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Society of Automotive Engineers [sae]
Society of Automotive Engineers [sae]