| Abbreviation | Definition |
|---|---|
| GSE1 | Gas Turbine System Technician (electrical) Petty Officer 1st Class |
| GSE1 | s Turbine System Technician (electrical) Petty Officer 1st Class |
| GSE2 | Gas Turbine System Technician (electrical) Petty Officer 2nd Class |
| GSE2 | s Turbine System Technician (electrical) Petty Officer 2nd Class |
| GSE3 | Gas Turbine System Technician (electrical) Petty Officer 3rd Class |
| GSE3 | s Turbine System Technician (electrical) Petty Officer 3rd Class |
| GSEC | Gas Turbine System Technician (electrical) Chief Petty Officer |
| GSEC | s Turbine System Technician (electrical) Chief Petty Officer |
| GSEFA | Gas Turbine System Technician (electrical) Fireman Apprentice |
| GSEFA | s Turbine System Technician (electrical) Fireman Apprentice |
| GSEFN | Gas Turbine System Technician (electrical) Fireman |
| GSEFN | s Turbine System Technician (electrical) Fireman |
| GSEFR | Gas Turbine System Technician (electrical) Fireman Recruit |
| GSEFR | s Turbine System Technician (electrical) Fireman Recruit |
| GSFA | Gas Turbine System Technician Fireman Apprentice |
| GSFA | s Turbine System Technician Fireman Apprentice |
| GSFN | Gas Turbine System Technician Fireman |
| GSFN | s Turbine System Technician Fireman |
| GSFR | Gas Turbine System Technician Fireman Recruit |
| GSFR | s Turbine System Technician Fireman Recruit |