MS51998 (NOTICE 1), MILITARY STANDARD: INSERT, SCREW THREAD-LOCKED IN, RING LOCKED, SERRATED, DESIGN AND USAGE LIMITATIONS FOR (10-MAY-1988)

MS51998 (NOTICE 1), MILITARY STANDARD: INSERT, SCREW THREAD-LOCKED IN, RING LOCKED, SERRATED, DESIGN AND USAGE LIMITATIONS FOR (10-MAY-1988)., MS51998, dated 12 December 1967, has been reviewed and determined to be valid for use in acquisition.