QQ-C-450A (NOTICE 1), FEDERAL SPECIFICATION: COPPER-ALUMINUM ALLOY (ALUMINUM BRONZE) PLATE, SHEET, STRIP, AND BAR (COPPER ALLOY NUMBERS 606, 610, 613, 614, AND 630) (22 FEB 1991)

QQ-C-450A (NOTICE 1), FEDERAL SPECIFICATION: COPPER-ALUMINUM ALLOY (ALUMINUM BRONZE) PLATE, SHEET, STRIP, AND BAR (COPPER ALLOY NUMBERS 606, 610, 613, 614, AND 630) (22 FEB 1991)., QQ-C-450A, dated 17 September 1974 has been reviewed and determined to be valid for use in acquisition.