MIL-S-20561 › Complete Document History
Spring, Escapement, Corrosion-Resisting

Complete Current Edition:
   REVISION A - SPRING, ESCAPEMENT, CORROSION- - March 14, 1974
   REV A INACTIVATION 2 - INACTIVATION NOTICE 2, REV A - May 9, 1996
   REV A VALIDATION 3 - VALIDATION NOTICE 3 FOR REVISION A - Jan. 21, 2021

Obsolete Revision Information:
   REV A VALIDATION 1 - VALIDATION NOTICE 1 REVISION A - Oct. 29, 1986