AN3 THRU AN20 (REV. 12) (NOTICE 1), MILITARY SPECIFICATION SHEET: BOLT - MACHINE, AIRCRAFT (01 DEC 1999) [S/S BY NASM3THRU20]

AN3 THRU AN20 (REV. 12) (NOTICE 1), MILITARY SPECIFICATION SHEET: BOLT - MACHINE, AIRCRAFT (01 DEC 1999) [S/S BY NASM3THRU20]., AN3 THRU AN20 REV. 12, dated 14 JANUARY 1991, is hereby canceled and superseded by NASM3 THRU NASM20. The Part Identification Number (PIN) for AN3 THRU AN20 REV. 12 and the part number for NASM3 THRU NASM20 are identical. The part numbers have not been changed.