MIL-W-6858D (AMENDMENT 1), MILITARY SPECIFICATION, WELDING, RESISTANCE: SPOT AND SEAM (6 NOV 1992) [S/S BY SAE-AMS-W-6858]., This amendment forms a part of MIL-W38158D, dated 28 March 1978, and is approved for use by all Departments and Agencies of the Department of Defense.