AMS7257D 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

Specification has been revised to incorporate AMS3085 (Reference Oil 300) to replace AMS3021 (Stauffer 7700), to increase the temperature for testing AMS3085 from 175 °C to 200 °C, Addition of compression set testing in AMS3085 as well as long term compression set testing (Table 1 – 3.2.7), to modify the acceptance tests (Table 2 and 3), to include qualification by responsible QPL agency to a Qualified Products List (QPL.) and to use the new specification template developed by the CE Committee.