Standard WIRE, ALUMINUM ALLOY WELDING 4.1Si - 0.2Mg (4643) 2011-08-10 HISTORICAL AMS4189C This specification covers an aluminum alloy in the form of welding wire.
Standard Zinc Alloy Castings, Die 4.0Al - 0.04Mg (AG40A) As Cast 2022-07-19 CURRENT AMS4803F This specification covers a zinc alloy in the form of die castings.