| Abbreviation | Definition |
|---|---|
| ACWC | Air Controlman (operator) Chief Petty Officer |
| AD1 | Aviation Machinist's Mate Petty Officer 1st Class |
| AD2 | Aviation Machinist's Mate Petty Officer 2nd Class |
| AD3 | Aviation Machinist's Mate Petty Officer 3rd Class |
| ADAA | Aviation Machinist's Mate Airman Apprentice |
| ADAN | Aviation Machinist's Mate Airman |
| ADAR | Aviation Machinist's Mate Airman Recruit |
| ADC | Aviation Machinist's Mate Chief Petty Officer |
| ADCS | Aviation Machinist's Mate Senior Chief Petty Officer |
| ADE1 | Aviation Machinist's Mate (engine Mechanic) Petty Officer First Class |
| ADE2 | Aviation Machinist's Mate (engine Mechanic) Petty Officer 2nd Class |
| ADE3 | Aviation Machinist's Mate (engine Mechanic) Petty Officer 3rd Class |
| ADEAA | Aviation Machinist's Mate (engine Mechanic) Airman Apprentice |
| ADEAN | Aviation Machinist's Mate (engine Mechanic) Airman |
| ADEAR | Aviation Machinist's Mate (engine Mechanic) Airman Recruit |
| ADEC | Aviation Machinist's Mate (engine Mechanic) Chief Petty Officer |
| ADF1 | Aviation Machinist's Mate (flight Engineer) Petty Officer 1st Class |
| ADF2 | Aviation Machinist's Mate (flight Engineer) Petty Officer 2nd Class |
| ADF3 | Aviation Machinist's Mate (flight Engineer) Petty Officer 3rd Class |
| ADFAA | Aviation Machinist's Mate (flight Engineer) Airman Apprentice |