SAE Standards Works
AMS CE Elastomers Committee
AMS7274J - Rings, Sealing, Butadiene-Acrylonitrile (Nbr) Rubber Oil Resistant 65-75
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Rings, Sealing, Butadiene-Acrylonitrile (Nbr) Rubber Oil Resistant 65-75
This specification covers a butadiene-acrylonitrile (NBR) rubber in the form of molded rings. These rings have been used typically for sealing at temperatures as low as -55 degrees C (-67 degrees F) where resistance to hot petroleum-base lubricating oil is required, but usage is not limited to such applications.
Revise to delete ambiguous corrosion test.