QQ-W-428B (AMENDMENT-1), FEDERAL SPECIFICATION: WIRE, STEEL, CARBON (HIGH CARBON, ROUND, FOR MECHANICAL SPRINGS, GENERAL PURPOSE) (09-APR-1991) [S/S BY SAE-AMS-QQ-W-428]

QQ-W-428B (AMENDMENT-1), FEDERAL SPECIFICATION: WIRE, STEEL, CARBON (HIGH CARBON, ROUND, FOR MECHANICAL SPRINGS, GENERAL PURPOSE) (09-APR-1991) [S/S BY SAE-AMS-QQ-W-428].