| Abbreviation | Definition |
|---|---|
| SEA1 | Seaman 1st Class (non Petty Officer) |
| SEA2 | aman 2d Class (non Petty Officer) |
| SEA2 | Seaman 2d Class (non Petty Officer) |
| SEA3 | aman 3rd Class (non Petty Officer) |
| SEA3 | Seaman 3rd Class (non Petty Officer) |
| SEAA | aman (aviation) |
| SEAA | Seaman (aviation) |
| SEAA2 | eaman 2d Class (aviation) (non Petty Officer) |
| SEAA2 | Seaman 2d Class (aviation) (non Petty Officer) |
| SEAGUN | aman Gunner |
| SEAGUN | Seaman Gunner |
| SEAR | aman (radio) |
| SEAR | Seaman (radio) |
| SEAR2 | eaman 2d Class (radio) (non Petty Officer) |
| SEAR2 | Seaman 2d Class (radio) (non Petty Officer) |
| SEBSN | Master-at-arms (shore) Seaman |
| SEBSN | ster-at-arms (shore) Seaman |
| SECN | Sociedad Española de Construcción Naval |
| SF1 | ipfitter 1st Class |
| SF1 | Shipfitter 1st Class |