| Abbreviation | Definition |
|---|---|
| ESISA | Instructor (miscellaneous) Seaman Apprentice |
| ESISA | structor (miscellaneous) Seaman Apprentice |
| ESISN | Instructor ((miscellaneous)) Seaman |
| ESISN | structor ((miscellaneous)) Seaman |
| ESISR | Instructor (miscellaneous) Seaman Recruit |
| ESISR | structor (miscellaneous) Seaman Recruit |
| ESK1 | Chemical Warfareman Petty Officer 1st Class |
| ESK1 | emical Warfareman Petty Officer 1st Class |
| ESK1 | formation Security Specialist Petty Officer First Class |
| ESK1 | Information Security Specialist Petty Officer First Class |
| ESK1 | lecom Censorship Technician Petty Officer 1st Class |
| ESK1 | Telecom Censorship Technician Petty Officer 1st Class |
| ESK2 | Chemical Warfare Man Petty Officer 2nd Class |
| ESK2 | emical Warfare Man Petty Officer 2nd Class |
| ESK2 | formation Security Specialist Petty Officer Second Class |
| ESK2 | Information Security Specialist Petty Officer Second Class |
| ESK2 | lecom Censorship Technician Petty Officer 2nd Class |
| ESK2 | Telecom Censorship Technician Petty Officer 2nd Class |
| ESK3 | Chemical Warfare Man Petty Officer 3rd Class |
| ESK3 | emical Warfare Man Petty Officer 3rd Class |