Rank Insignia Comparison Table USN Rank Insignia Officers (1941-43) Enlisted (1941-43) IJN Rank Insignia Officers (1931-45) Enlisted (1931-42) Enlisted (1942-45)
  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)