| Abbreviation | Definition |
|---|---|
| SCLK | Ship's Clerk |
| SCORP | ip's Corporal |
| SCORP | Ship's Corporal |
| SCPO | nior Chief Petty Officer |
| SCPO | Senior Chief Petty Officer |
| SD1 | eward Petty Officer 1st Class |
| SD1 | Steward Petty Officer 1st Class |
| SD2 | eward Petty Officer 2nd Class |
| SD2 | Steward Petty Officer 2nd Class |
| SD3 | eward Petty Officer 3rd Class |
| SD3 | Steward Petty Officer 3rd Class |
| SDC | eward Chief Petty Officer |
| SDC | Steward Chief Petty Officer |
| SDG1 | eward (cook) Petty Officer 1st Class |
| SDG1 | Steward (cook) Petty Officer 1st Class |
| SDG2 | eward (cook) Petty Officer 2nd Class |
| SDG2 | Steward (cook) Petty Officer 2nd Class |
| SDG3 | eward (cook) Petty Officer 3rd Class |
| SDG3 | Steward (cook) Petty Officer 3rd Class |
| SDGTA | eward (cook) Steward Apprentice |