| Abbreviation | Definition |
|---|---|
| MSR | talsmith (ship Repair) |
| MSRB | Metalsmith (ship Repair (blacksmith) |
| MSRB | talsmith (ship Repair (blacksmith) |
| MSRC | Metalsmith (ship Repair Coppersmith) |
| MSRC | talsmith (ship Repair Coppersmith) |
| MSRF | Metalsmith (ship Repair Forger Anglesmith) |
| MSRF | talsmith (ship Repair Forger Anglesmith) |
| MSRS | Metalsmith (ship Repair Sheet Metal) |
| MSSA | Mess Management Specialist Seaman Apprentice |
| MSSN | ess Management Specialist Seaman |
| MSSN | Mess Management Specialist Seaman |
| MSSR | Mess Management Specialist Seaman Recruit |
| MSSR | ss Management Specialist Seaman Recruit |
| MT1 | Missile Technician Petty Officer 1st Class |
| MT1 | ssile Technician Petty Officer 1st Class |
| MT2 | Missile Technician Petty Officer 2nd Class |
| MT2 | ssile Technician Petty Officer 2nd Class |
| MT3 | Missile Technician Petty Officer 3rd Class |
| MT3 | ssile Technician Petty Officer 3rd Class |
| MTC | Missile Technician Chief Petty Officer |