NASM-21042 Complete Document History
Nut, Self-Locking, 450 Degrees F, Reduced Hexagon, Reduced Height, Ring Base, Non-Corrosion Resistant Steel

Complete Current Edition:
   REVISION 3 - REDUCED HEIGHT, RING BASE, NON-CORROSION RESISTANT STEEL - May 29, 2020

Obsolete Revision Information:
   2ND EDITION - NUT, SELF-LOCKING, 450 F, REDUCED HEXAGON, REDUCED HEIGHT, RING BASE, NON-CORROSION RESISTANT STEEL - April 30, 2018
   1ST EDITION - Nut, Self-Locking, 450 Degrees F, Reduced Hexagon, Reduced Height, Ring Base, Non-Corrosion Resistant Steel - Jan. 31, 2013
   DOD ADOPTION - FYI ONLY: DOD ADOPTED - June 22, 1999
   1998 EDITION - NUT, SELF-LOCKING, 450 DEGREES - Oct. 1, 1998