MIL-S-81591 (AMENDMENT 3), MILITARY SPECIFICATION: STEEL, INVESTMENT CASTINGS, CARBON AND CORROSION RESISTING (31 JAN 1983) [S/S BY VARIOUS NON-GOVERNMENT STANDARDS - REFER TO NOTICE 1]

MIL-S-81591 (AMENDMENT 3), MILITARY SPECIFICATION: STEEL, INVESTMENT CASTINGS, CARBON AND CORROSION RESISTING (31 JAN 1983) [S/S BY VARIOUS NON-GOVERNMENT STANDARDS - REFER TO NOTICE 1].