TYPETYPE 
SUBTYPE 
NUMERICTYPEDESIGNATOR 
MODELNUMBERS 
COMMONNAME 
STATUS 
PURPOSE 
SVC 
PRIMECONTRACTOR 
OTHERCONTRACTORS 
SPECIFICATIONS 
REMARKS 
 
gun 
naval (14) 
Mark-11 
– 
– 
obsolete 
naval offensive 
Navy 
– 
– 
– 
WW II.  Battleship Tennessee, eg 
 
gun 
naval (14) 
Mark-4 
– 
– 
obsolete 
naval offensive 
Navy 
– 
– 
– 
Pre-WW II.  Battleship Tennessee, eg 
 
gun 
naval (16/45 cal) 
– 
– 
– 
obsolete 
– 
Navy 
– 
– 
– 
Eight on each of BB 45, 46, 48 
Nine on each of BB 55 thru BB 60
 
gun 
naval (16/50 cal) 
– 
– 
– 
obsolete 
Naval offensive 
Navy 
– 
– 
– 
Nine each on only the four Iowa Class battleships. 
Triple turret
 
gun 
naval (3/23 cal) 
– 
– 
– 
obsolete 
– 
Navy 
– 
– 
– 
Used rarely as primary armament on small ships, e.g. a few minesweepers, in WW II  
 
gun 
naval (3/50 cal) 
– 
– 
– 
obsolete 
– 
Navy 
– 
– 
– 
Used as primary armament on certain small ships, such as some minesweepers and destroyer escorts, in WW II 
 
gun 
naval (5/25 cal) 
– 
– 
– 
obsolete 
anti-aircraft 
Navy 
– 
– 
– 
WW II era 
Used as secondary armament on large ships, such as battleships
 
gun 
naval (5/38 cal) 
– 
– 
– 
obsolete 
– 
Navy 
– 
– 
– 
WW II era 
Used as primary armament of destroyers and smaller vessels
 
gun 
naval (5/38 cal) 
Mk-12 
– 
– 
obsolete 
– 
Navy 
– 
– 
– 
Used from 1935 (USS Hull thfrough 1994 (until decommissioning of USS Long Beach).  Was primary weapon on most U.S. destroyers of the period and secondary weapon on larger ships. 
 
gun 
naval (5/38 cal) 
Mk-24 
– 
– 
obsolete 
– 
Navy 
– 
– 
– 
Single turret