QQ-C-450A (INTERIM AMENDMENT 1), FEDERAL SPECIFICATION: COPPER-ALUMINUM ALLOY (ALUMINUM BRONZE) PLATE, SHEET, STRIP, AND BAR (COPPER ALLOY NUMBERS 606, 610, 613, 614, AND 630) (21 JAN 1981)

QQ-C-450A (INTERIM AMENDMENT 1), FEDERAL SPECIFICATION: COPPER-ALUMINUM ALLOY (ALUMINUM BRONZE) PLATE, SHEET, STRIP, AND BAR (COPPER ALLOY NUMBERS 606, 610, 613, 614, AND 630) (21 JAN 1981)., This interim amendment was developed by the Department of the Navy, Naval Sea Systems Commend, Washington, DC 20362, based upon currently available technical information. It 1s recommended that Federal agencies use it in procurement and forward recommendations for changes to the preparing activity at the address shown above. The General Services Administration has authorized the use of this interim amendment as a valid exception to Federal Specification QQ-C-450A, dated 17 September 1974.