| Abbreviation | Definition |
|---|---|
| CEW2 | Construction Electrician's Mate (wiring) Petty Officer 2nd Class |
| CEW3 | Construction Electrician's Mate (wiring) Petty Officer 3rd Class |
| CEWC | Construction Electrician's Mate (wiring) Chief Petty Officer |
| CEWCA | Construction Electrician's Mate (wiring) Constructionman Apprentice |
| CEWCN | Construction Electrician's Mate (wiring) Constructionman |
| CEWCR | Construction Electrician's Mate (wiring) Constructionman Recruit |
| CF | Charlie Foxtrot |
| CFC | Chief Fire Controlman |
| CFCO | Chief Fire Controlman (operator) |
| CFCS | Chief Fire Controlman (submarine) |
| CGC | Chief Gun Captain |
| CGM | Chief Gunner's Mate |
| CGMA | Chief Gunner's Mate (aviation) |
| CGMT | Chief Gunner's Mate (torpedo) |
| CH | Coal Heaver |
| CHAERO | Chief Aerographer |
| CHBOSN | Chief Boatswain |
| CHCARP | Chief Carpenter |
| CHELEC | Chief Electrician |
| CHGUN | Chief Gunner |