MIL-W-52263C, MILITARY SPECIFICATION, WIRE, STEEL, CORROSION RESISTING, FREE MACHINING STOCK (30 JUN 1975) [S/S BY ASTM-A555 AND ASTM-A581]., Specification MIL-W-52263C(PIR),dated 7 May 1969, is hereby canceled. Future procurements for this material should refer to ASTM A 555 and ASTM A 581.