| Abbreviation | Definition |
|---|---|
| BMRSR | Boatswain's Mate R (rigger) Seaman Recruit |
| BMS1 | Boatswain's Mate(stevedore) Petty Officer 1st Class |
| BMS2 | Boatswain's Mate(stevedore) Petty Officer 2nd Class |
| BMS3 | Boatswain's Mate (stevedore) Petty Officer 3rd Class |
| BMSC | Boatswain's Mate (stevedore) Chief Petty Officer |
| BMSR | Boatswain's Mate Seaman Recruit |
| BMSRC1 | Boatswain's Mate (ship Repair, Crane Operaror) Petty Officer 1st Class |
| BMSRC2 | Boatswain's Mate (ship Repair, Crane Operaror) Petty Officer 2nd Class |
| BMSRC3 | Boatswain's Mate (ship Repair, Crane Operaror) Petty Officer 3rd Class |
| BMSRR1 | Boatswain's Mate (ship Repair, Rigger) Petty Officer 1st Class |
| BMSRR2 | Boatswain's Mate (ship Repair, Rigger) Petty Officer 2nd Class |
| BMSRR3 | Boatswain's Mate (ship Repair, Rigger) Petty Officer 3rd Class |
| BMSRS1 | Boatswain's Mate (ship Repair, Canvasman) Petty Officer 1st Class |
| BMSRS2 | Boatswain's Mate (ship Repair, Canvasman) Petty Officer 2nd Class |
| BMSRS3 | Boatswain's Mate (ship Repair, Canvasman) Petty Officer 3rd Class |
| BMSSA | Boatswain's Mate (stevedore) Seaman Apprentice |
| BMSSN | Boatswain's Mate(stevedore) Seaman |
| BMSSR | Boatswain's Mate(stevedore) Seaman Recruit |
| BMSTR | Bandmaster |
| BNC | Bayonet Navy Connector |