Product Code:SAE AMS4139 Title:Aluminum Alloy, Forgings, 5.6zn 2.5mg 1.6cu 0.25cr (Cancelled Sep 1996, Superseded by AMS4126) Issuing Committee:Ams D Nonferrous Alloys Committee Scope: This specification has been declared 'CANCELLED' by the Aerospace Materials Division, SAE, as of September 1996, and has been superseded by AMS 4126. Alloy: 7075-T6 UNS Number: A97075