FED-STD-66D (NOTICE 1), FEDERAL STANDARD: STEEL: CHEMICAL COMPOSITION AND HARDENABILITY (18 JAN 1991) [S/S BY SAE AIR4127]

FED-STD-66D (NOTICE 1), FEDERAL STANDARD: STEEL: CHEMICAL COMPOSITION AND HARDENABILITY (18 JAN 1991) [S/S BY SAE AIR4127]., FED-STD-66D adopted on 8 March 1979 has been reviewed and determined to be valid for use in acquisition.