| Abbreviation | Definition |
|---|---|
| GMSR | Gunner's Mate Seaman Recruit |
| GMSR | nner's Mate Seaman Recruit |
| GMSR1 | Gunner's Mate (ship Repair) Petty Officer 1 St Class |
| GMSR1 | nner's Mate (ship Repair) Petty Officer 1 St Class |
| GMSR2 | Gunner's Mate (ship Repair) Petty Officer 2nd Class |
| GMSR2 | nner's Mate (ship Repair) Petty Officer 2nd Class |
| GMSR3 | Gunner's Mate (ship Repair) Petty Officer 3rd Class |
| GMSR3 | nner's Mate (ship Repair) Petty Officer 3rd Class |
| GMSRC | Gunner's Mate (ship Repair) Chief Petty Officer |
| GMSRC | nner's Mate (ship Repair) Chief Petty Officer |
| GMSRP1 | Gunner's Mate (ship Repair)(powderman) 1st Class Petty Officer |
| GMSRP1 | nner's Mate (ship Repair)(powderman) 1st Class Petty Officer |
| GMSRP2 | Gunner's Mate (ship Repair)(powderman) 2nd Class Petty Officer |
| GMSRP2 | nner's Mate (ship Repair)(powderman) 2nd Class Petty Officer |
| GMSRP3 | Gunner's Mate (ship Repair)(powderman) 3rd Class Petty Officer |
| GMSRP3 | nner's Mate (ship Repair)(powderman) 3rd Class Petty Officer |
| GMT1 | Gunner's Mate (technician) Petty Officer 1st Class |
| GMT1 | Gunner's Mate (torpedo) 1st Class Petty Officer |
| GMT1 | Gunner's Mate (turrets) Petty Officer 1st Class |
| GMT1 | nner's Mate (technician) Petty Officer 1st Class |