QQ-N-281D (AMENDMENT 1), FEDERAL SPECIFICATION: NICKEL-COPPER ALLOY BAR, ROD, PLATE, SHEET, STRIP, WIRE, FORGINGS, AND STRUCTURAL AND SPECIAL SHAPED SECTIONS (21 JAN 1981)

QQ-N-281D (AMENDMENT 1), FEDERAL SPECIFICATION: NICKEL-COPPER ALLOY BAR, ROD, PLATE, SHEET, STRIP, WIRE, FORGINGS, AND STRUCTURAL AND SPECIAL SHAPED SECTIONS (21 JAN 1981).