AN373 (REV. 4) (NOTICE 1), AIR FORCE/NAVY AERONAUTICAL STANDARD: NUT, SELF LOCKING, PLATE, COUNTERSUNK 100 DEG., 250 DEG. F (21 OCT 1991) (S/S BY MS21049)

AN373 (REV. 4) (NOTICE 1), AIR FORCE/NAVY AERONAUTICAL STANDARD: NUT, SELF LOCKING, PLATE, COUNTERSUNK 100 DEG., 250 DEG. F (21 OCT 1991) (S/S BY MS21049)., AN373 Rev 4, dated 21 March 1972, is hereby canceled. Future acquisitions should refer to MS221049