Browse Standards AMS7258A
Historical Revised 1986-04-01

Rings, Sealing, Butadiene-Acrylonitrile (Nbr) Rubber Fuel Resistant, Low Shrinkage 65-75 AMS7258A

This specification covers butadiene acrylonitrile (NBR) rubber in the form of molded rings. Primarily for use in aircraft fuel systems operating from -55 degrees to +125 degrees C (-67 degrees +257 degrees F). These rings contain less plasticizer than normally used in aircraft fuel seals; therefore, there is less shrinkage when the rings are dried out.
AMS7258B
2017-11-03
Latest
Reaffirmed
AMS7258A
1986-04-01
Historical
Revised
AMS7258
1985-07-01
Historical
Issued

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