| Abbreviation | Definition |
|---|---|
| BMA3 | Boatswain's Mate (Master-at-Arms) 3rd Class |
| BMA3 | Boatswain's Mate (master-at-arms) Petty Officer 3rd Class |
| BMB1 | Boatswain's Mate (seabee) Petty Officer 1st Class |
| BMB2 | Boatswain's Mate (seabee) Petty Officer 2nd Class |
| BMB3 | Boatswain's Mate (seabee) Petty Officer 3rd Class |
| BMBC | Boatswain's Mate (seabee) Chief Petty Officer |
| BMBSA | Boatswain's Mate (seabee) Seaman Apprentice |
| BMBSR | Boatswain's Mate (seabee) Seaman Recruit |
| BMC | Boatswain's Mate Chief Petty Officer |
| BMCB1 | Boatswain's Mate (constructon Battalion) Petty Officer 1st Class |
| BMCB2 | Boatswain's Mate (constructon Battalion) Petty Officer 2nd Clas |
| BMCB3 | Boatswain's Mate (constructon Battalion) Petty Officer 3rd Class |
| BMCBB1 | Boatswain's Mate (constructon Battalion - B) Petty Officer 1st Class |
| BMCBB2 | Boatswain's Mate (constructon Battalion - B) Petty Officer 2nd Class |
| BMCBB3 | Boatswain's Mate (constructon Battalion - B) Petty Officer 3rd Class |
| BMCBS1 | Boatswain's Mate (construction Battalion-stevedore) Petty Officer 1st Class |
| BMCBS2 | Boatswain's Mate (construction Battalion-stevedore) Petty Officer 2nd Class |
| BMCBS3 | Boatswain's Mate (construction Battalion-stevedore) Petty Officer 3rd Class |
| BMCM | Boatswain's Mate Master Chief Petty Officer |
| BMCS | Boatswain's Mate Senior Chief Petty Officer |