Browse Standards AMS7257D
Historical REVISED 2012-11-20

Perfluorocarbon (FFKM) Engine Oil, Fuel and Hydraulic Fluid Resistant 70 to 80 Hardness For High Temperature Seals in Engine Oil Systems, Fuel Systems and Hydraulic Systems AMS7257D

This specification covers a Perfluorocarbon (FFKM) rubber in the form of molded rings, compression seals, o-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications.
AMS7257E
2014-09-05
Latest
Revised
AMS7257D
2012-11-20
Historical
Revised
AMS7257A
2011-08-15
Historical
Reaffirmed
AMS7257C
1998-08-01
Historical
Reaffirmed
AMS7257B
1992-01-01
Historical
Revised
AMS7257
1985-04-01
Historical
Issued

SAE MOBILUS

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STANDARD

Perfluorocarbon (FFKM) Engine Oil, Fuel and Hydraulic Fluid Resistant 70 to 80 Hardness For High Temperature Seals in Engine Oil Systems, Fuel Systems and Hydraulic Systems

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STANDARD

Rubber: Fluorocarbon Elastomer (FKM) Low Temperature Sealing Tg -40 °F (-40 °C) 70 to 80 Type ‘A’ Hardness For Elastomeric Seals in Aircraft Engine Oil, Fuel and Hydraulics Systems

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STANDARD

Rubber: Fluorocarbon (FKM) High Temperature/Fluid Resistant Low Compression Set/85 to 95 Hardness For Seals In Fuel Systems and Specific Engine Oil Systems

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