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Rank Insignia Comparative Ranks USN Rank Insignia Officers (1941-1943) Enlisted (1941-1943) IJN Rank Insignia Officers (1931-1945) Enlisted (1931-1942) Enlisted (1942-1945)
  USN Commissioned Officers Rank Insignia 1941-1943
 
Admiral, Captain, Leutenant Commander, Leutenant, Ensign, Warrant Officer
Flag Officers
 Admiral, Line Vice Admiral, Supply Corps Rear Admiral, Civil Engineer Corps
Admiral, Line Vice Admiral, Supply Corps Rear Admiral, Civil Engineer Corps
Senior Officers
Captain, Medical Corps Commander, Hospital Corps Leutenant Commander, Dental Corps
Captain, Medical Corps Commander, Hospital Corps Leutenant Commander, Dental Corps
Junior Officers
Leutenant, Chaplain Corps (Christian) Leutenant, Junior Grade, Chaplain Corps (Jewish) Ensign, Leader, U.S. Navy Band
Leutenant,
Chaplain Corps (Christian)
Leutenant, Junior Grade,
Chaplain Corps (Jewish)
Ensign,
Leader, U.S. Navy Band
Warrant Officers and Midshipmen
Chief Warrant Officer, Chief Boatswain Midshipman 1st Class Warrant Officer, Boatswain
Chief Warrant Officer, Chief Boatswain Midshipman 1st Class Warrant Officer, Boatswain
Warrant Officers's Corps and Speciality Marks
Gunner Torpedoman Machinist Electrician Radio Electrician Pharmacist
Gunner Torpedoman Machinist Electrician

Radio Electrician Pharmacist
Photographer Aerographer Pay Clerk Ship's Clerk Carpenter Carpenter (CEC)
Photographer Aerographer Pay Clerk Ship's Clerk Carpenter Carpenter (CEC)