| Abbreviation | Definition |
|---|---|
| FPGC | Pipefitter (shipboard) Chief Petty Officer |
| FPGFA | pefitter (shipboard) Fireman Apprentice |
| FPGFA | Pipefitter (shipboard) Fireman Apprentice |
| FPGFN | pefitter (shipboard) Fireman |
| FPGFN | Pipefitter (shipboard) Fireman |
| FPGFR | pefitter (shipboard) Fireman Recruit |
| FPGFR | Pipefitter (shipboard) Fireman Recruit |
| FPP1 | pefitter (plumber) Petty Officer 1st Class |
| FPP1 | Pipefitter (plumber) Petty Officer 1st Class |
| FPP2 | pefitter (plumber) Petty Officer 2nd Class |
| FPP2 | Pipefitter (plumber) Petty Officer 2nd Class |
| FPP3 | pefitter (plumber) Petty Officer 3rd Class |
| FPP3 | Pipefitter (plumber) Petty Officer 3rd Class |
| FPPC | pefitter (plumber) Chief Petty Officer |
| FPPC | Pipefitter (plumber) Chief Petty Officer |
| FPPFA | pefitter (plumber) Fireman Apprentice |
| FPPFA | Pipefitter (plumber) Fireman Apprentice |
| FPPFN | pefitter (plumber) Fireman |
| FPPFN | Pipefitter (plumber) Fireman |
| FPPFR | pefitter (plumber) Fireman Recruit |