MS-20501 Complete Document History
Nut, Self Locking, Plate, Two Lug, 1200 Deg. F, 125 Ksi Ftu (Superseded by NASM-20501)

Complete Current Edition:
   REVISION D - NUT, SELF LOCKING, PLATE, TWO - Dec. 1, 1993

Obsolete Revision Information:
   VALIDATION NOTICE 1 - NUT, SELF LOCKING, PLATE, TWO - Oct. 9, 1991
   REVISION C - NUT, SELF LOCKING, PLATE, TWO - July 14, 1969