| Abbreviation | Definition |
|---|---|
| MA3 | chine Accountant Petty Officer 3rd Class |
| MA3 | Machine Accountant Petty Officer 3rd Class |
| MAA1 | Master-at-arms 1st Class Petty Officer |
| MAA1 | ster-at-arms 1st Class Petty Officer |
| MAA2 | Master-at-arms 2nd Class Petty Officer |
| MAA2 | ster-at-arms 2nd Class Petty Officer |
| MAA3 | Master-at-arms 3rd Class Petty Officer |
| MAA3 | ster-at-arms 3rd Class Petty Officer |
| MAC | chine Accountant Chief Petty Officer |
| MAC | Machine Accountant Chief Petty Officer |
| MAC | Master-at-arms Chief Petty Officer |
| MAC | ster-at-arms Chief Petty Officer |
| MACH1 | chinist 1st Class Petty Officer |
| MACH1 | Machinist 1st Class Petty Officer |
| MACH2 | chinist 2nd Class Petty Officer |
| MACH2 | Machinist 2nd Class Petty Officer |
| MACH3 | chinist 3rd Class Petty Officer |
| MACH3 | Machinist 3rd Class Petty Officer |
| MACM | Master-at-arms Master Chief Petty Officer |
| MACM | ster-at-arms Master Chief Petty Officer |