United States of America
Naval Ammuntion Markings

By Tony DiGiulian
Updated:  29 July 2014

 Projectile Markings of the World War II era


USN Projectile Markings of the World War II era for projectiles larger than 40 mm
Click on this picture for a larger image

Please see the individual data pages for the projectile markings used for USN 20 mm, 1.1 inch and 40 mm ammunition

Bag Charge Markings of the World War II era

Bag charges were lettered in 0.375 inch (1 cm) black characters on the side of the bag opposite the lacings, with the bottom of the letters towards the ignition end of the bag.  Markings were as follows:

Cartridge Case Markings of the World War II era


Fixed and Semi-fixed (separate) cartridge cases had the index number painted in 0.75 inch (2 cm) high letters on the head end of the case.  Semi-fixed (separate) cartridge cases also had their ammunition lot numbers painted on in the same size letters.  In addition, cases with flashless propellant had the word FLASHLESS painted on the side of the case and a 0.75 inch (2 cm) F painted in yellow on the case head.

N.G.F. stands for Naval Gun Factory, which was located at the Washington D.C. Navy Yard

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Page History

01 August 2008 - Benchmark
29 July 2014 - Updated to latest template