FED-STD-66D (NOTICE 3), FEDERAL STANDARD: STEEL: CHEMICAL COMPOSITION AND HARDENABILITY (08 JAN 2010) [S/S BY SAE AIR4127 ON 19 MAR 2009]
FED-STD-66D (NOTICE 3), FEDERAL STANDARD: STEEL: CHEMICAL COMPOSITION AND HARDENABILITY (08 JAN 2010) [S/S BY SAE AIR4127 ON 19 MAR 2009]., FED-STD-66D, dated 8 March 1979, is hereby canceled. This federal standard is superseded by SAE AIR4127, "Steel: Chemical Composition and Hardenability". SAE AIR4127 was DoD adopted on 19 March 2009. CAUTION: The supersession information is valid as of the date of this notice and may be superseded by subsequent revisions of the superseding document.