MIL-A-21180D, MILITARY SPECIFICATION: ALUMINUM-ALLOY CASTINGS, HIGH STRENGTH (05 NOV 1984) [S/S BY SAE-AMS-A-21180]

MIL-A-21180D, MILITARY SPECIFICATION: ALUMINUM-ALLOY CASTINGS, HIGH STRENGTH (05 NOV 1984) [S/S BY SAE-AMS-A-21180]., This specification covers the requirements for six alloy compositions, four inspection classes, four radiographic quality grades and six classes of mechanical properties of high strength aluminum-alloy castings.