This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE, as of December 2008. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Materials Specifications indicating that is has been "CANCELLED".This specification covers the engineering requirements for finishing aircraft parts and assemblies with an aluminum enamel. Primarily for parts and assemblies operating in service up to 350F degrees (175C degrees).