MIL-STD-139A, MILITARY SPECIFICATION: RADIOGRAPHIC INSPECTION, SOUNDNESS REQUIREMENTS FOR ALUMINUM AND MAGNESIUM CASTINGS (FOR SMALL ARMS PARTS) (25-FEB-1960)

MIL-STD-139A, MILITARY SPECIFICATION: RADIOGRAPHIC INSPECTION, SOUNDNESS REQUIREMENTS FOR ALUMINUM AND MAGNESIUM CASTINGS (FOR SMALL ARMS PARTS) (25-FEB-1960)., This standard covers the radiographic inspection of aluminum and magnesium sand, investment, permanent mold, and die castings.