United States Amy Rank Abbreviations and Acronyms

1. CMHC
   CONSTRUCTION MECHANIC (HEAVY CONSTRUCTION) CHIEF PETTY OFFICER
2. CMHCA
   CONSTRUCTION MECHANIC (HEAVY CONSTRUCTION) APPRENTICE
3. CML
   CHIEF MOLDER
4. CMM
   CHIEF MACHINIST'S MATE
5. CMMA
   CHIEF MACHINIST'S MATE(AVIATION)
6. CMMAP
   CHIEF MACHINIST'S MATE(AVIATION, PHOTOGRAPHIC)
7. CMMG
   CHIEF MACHINIST'S MATE(GAS GENERATING)
8. CMMO
   CHIEF MACHINIST'S MATE(OPTICIAN)
9. CMMR
   CHIEF MACHINIST'S MATE(REFRIGERATION)
10. CMMS
    CHIEF MACHINIST'S MATE(SHOP)
11. CMMW
    CHIEF MACHINIST'S MATE (WATCH MAKER)
12. CMN
    CHIEF MINEMAN
13. CMS
    Chief Master Sergeant
14. CMSAF
    Chief Master Sergeant of The Air Force
15. CMSGT
    Chief Master Sergeant
16. CMSRB
    CARPENTER'S MATE (SHIP REPAIR, BOATBUILDERS)
17. CMSRJ
    CARPENTER'S MATE (SHIP REPAIR, JOINERS)
18. CMSRN
    CARPENTER'S MATE (SHIP REPAIR, CEMENT WORKERS)
19. CMUS
    CHIEF MUSICIAN
20. CN
    Constructionman

Last updated: May 24, 2020 — Total entries: 3,362