MS51922E, MILITARY STANDARD: NUT, SELF-LOCKING, HEXAGON-PREVAILING TORQUE, GENERAL PURPOSE, 250 DEG. F, UNC-2B AND UNF-2B (23 JUN 1976) [S/S BY MIL-DTL-45913]

MS51922E, MILITARY STANDARD: NUT, SELF-LOCKING, HEXAGON-PREVAILING TORQUE, GENERAL PURPOSE, 250 DEG. F, UNC-2B AND UNF-2B (23 JUN 1976) [S/S BY MIL-DTL-45913].