QQ-N-288 (NOTICE 2), FEDERAL SPECIFICATION: NICKEL-COPPER ALLOY AND NICKEL-COPPER-SILICON ALLOY CASTINGS (22 JAN 1992) [S/S BY ASTM-A494 AND MIL-C-24723

QQ-N-288 (NOTICE 2), FEDERAL SPECIFICATION: NICKEL-COPPER ALLOY AND NICKEL-COPPER-SILICON ALLOY CASTINGS (22 JAN 1992) [S/S BY ASTM-A494 AND MIL-C-24723]., Federal Specification. QQ-N-288, dated December 20, 1956, including QQ-N-288 Amendment 1 dated September 21, 1961, QQ-N- 00288 Amendment 2 dated October 4, 1965 and QQ-N-00288 Amendment 3 dated December 24, 1980 is hereby canceled. Standard quality Nickel-copper and Nickel-copper-silicon castings should be procured to ASTM A 494. High quality castings must be procured to MIL-C-24723 Castings, Nickel-Copper Alloy.