October 13, 1775
[SECDEF] Secretary of Defense
[USECDEF] Under Secretary of Defense
[SECNAV] Secretary of the Navy
[USECNAV] Under Secretary of the Navy
[ASECNAV] Assistant Secretary of the Navy
DEPNAV (Department of the Navy) [ASECNAV - SECDEF]
[CNO]Chief of Naval Operations
[VCNO] Vice Chief of Naval Operations
[MCPONAV] Master Chief Petty Officer of the Navy
[CNP] Chief of Naval Personnel
[IGNAV] Inspector General of the Navy
[DIGNAV] Deputy Inspector General of the Navy
HQ (Headquarters) [DIGNAV - CNO]
[0-10] Admiral
[0-9] Vice Admiral
[0-8] Rear Admiral Upper Half
[0-7] Rear Admiral Lower Half
AO (Admiral Officers) [0-7 - 0-10]
[0-6] Captain
[0-5] Commander
[0-4] Lieutenant Commander
[0-3] Lieutenant
[0-2] Lieutenant Junior Grade
[0-1] Ensign
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[E-9B] Command Master Chief Petty Officer
[E-9A] Master Chief Petty Officer
[E-8] Senior Chief Petty Officer
[E-7] Chief Petty Officer
SNCO [E-7 - E-9B]
[E-6] Petty Officer First ClassÂ
[E-5] Petty Officer Second Class
[E-4] Petty Officer Third Class
NCO [E-4 - E-6]
[E-3] Seaman
[E-2] Seaman Apprentice
[E-1] Seaman Recruit