Governmental & Military Abbreviations and Acronyms

1. MMLFA
   MACHINIST'S MATE (GENERAL) FIREMAN APPRENTICE
2. MMLFN
   MACHINIST'S MATE (GENERAL) FIREMAN
3. MMLFR
   MACHINIST'S MATE (GENERAL) FIREMAN RECRUIT
4. MMMB1
   MACHINIST'S MATE (MOTOR BOAT) PETTY OFFICER FIRST CLASS
5. MMMB2
   MACHINIST'S MATE (MOTOR BOAT) PETTY OFFICER SECOND CLASS
6. MMO1
   MACHINIST'S MATE (OPTICIAN) PETTY OFFICER FIRST CLASS
7. MMO2
   MACHINIST'E MATE (OPTICIAN) PETTY OFFICER SECOND CLASS
8. MMR3
   MACHINIST'S MATE (REFRIGERATION MECHANIC) 3RD CLASS PETTY OFFICER
9. MMRFA
   MACHINIST'S MATE (REFRIGERATION MECHANIC) FIREMAN APPRENTICE
10. MMRFN
    MACHINIST'S MATE (REFRIGERATION MECHANIC) FIREMAN
11. MMRFR
    MACHINIST'S MATE (REFRIGERATION MECHANIC) FIREMAN RECRUIT
12. MMS1
    MACHINIST'S MATE (SHOP MACHINIST) 1ST CLASS PETTY OFFICER
13. MMS3
    MACHINIST'S MATE (SHOP MACHINIST) 3RD CLASS PETTY OFFICER
14. MMSRS
    MACHINIST'S MATE (SHIP REPAIR-INSIDE)
15. MMW1
    MACHINIST'S MATE (WATCHMAKER)
16. MMW2
    MACHINIST'S MATE (WATCHMAKER)
17. MN1
    MINEMAN 1ST CLASS PETTY OFFICER
18. MN2
    MINEMAN 2ND CLASS PETTY OFFICER
19. MNSN
    MINEMAN SEAMAN
20. MOMM1
    MOTOR MACHINIST'S MATE 1ST CLASS PETTY OFFICER

Last updated: May 24, 2020 — Total entries: 74,798