MS51988B (AMENDMENT 1), MILITARY SPECIFICATION: NUT, SELF-LOCKING, FLANGED, PREVAILING TORQUE, STEEL, CADMIUM, UNC AND UNF (20-FEB-1996)

MS51988B (AMENDMENT 1), MILITARY SPECIFICATION: NUT, SELF-LOCKING, FLANGED, PREVAILING TORQUE, STEEL, CADMIUM, UNC AND UNF (20-FEB-1996)., This amendment forms a part of Ms51988B, dated 22 June 1970, and is approved for use by all Departments and Agencies of the Department of Defense.