NAT-STD-2855 Complete Document History
20 mm Hispano Suiza/m139 (20 mm X 139) Ammunition Interchangeable Within Nato Land For


Obsolete Revision Information:
   BASE - 20 MM HISPANO SUIZA/M139 #20 M - March 27, 1984
   NOTICE - 20 MM HISPANO SUIZA/M139 #20 M - March 27, 1984
   AMENDMENT 1 - 20 MM HISPANO SUIZA/M139 #20 M - Jan. 1, 1960