Used by 1953 Audaz class destroyer DD 21954 Dealey class frigate FF 21955 St. Laurent class destroyer DD 21957 Centauro class frigate FF 21958 Claud Jones class frigate FF 11961 Bronstein class frigate FF 11963 St. Laurent DDH class destroyer DD 11964 Annapolis class destroyer DD 11965 Amatsukaze class guided-missile destroyer DDG 21966 Yamagumo class destroyer DD 21966 Oslo class frigate FF 21966 Pereira da Silva class frigate FF 11967 Minegumo class destroyer DD 21970 Joao Coutinho class corvette FS 11975 Miura class landing ship/platform dock L 1 In Service Spanish Navy US Navy Uruguayan Navy Colombian Navy Canadian Armed Forces Italian Navy indonesian navy Mexican Navy Japanese Navy Royal Norwegian Navy Portuguese Navy
Mark 33 3/50 inch (twin 76 mm)
Audaz class destroyer DD 
St. Laurent class destroyer DD 
Centauro class frigate FF 
Amatsukaze class guided-missile destroyer DDG 
Oslo class frigate FF 
Pereira da Silva class frigate FF 
Uruguayan Navy
Colombian Navy
indonesian navy
Mexican Navy