| Abbreviation | Definition |
|---|---|
| ESK3 | formation Security Specialist Petty Officer Third Class |
| ESK3 | Information Security Specialist Petty Officer Third Class |
| ESK3 | lecom Censorship Technician Petty Officer 3rd Class |
| ESK3 | Telecom Censorship Technician Petty Officer 3rd Class |
| ESKC | Chemical Warfare Man Chief Petty Officer |
| ESKC | emical Warfare Man Chief Petty Officer |
| ESKC | formation Security Specialist Chief Petty Officer |
| ESKC | Information Security Specialist Chief Petty Officer |
| ESKC | lecom Censorship Technician Chief Petty Officer |
| ESKC | Telecom Censorship Technician Chief Petty Officer |
| ESKFA | Chemical Warfare Man Fireman Apprentice |
| ESKFA | emical Warfare Man Fireman Apprentice |
| ESKFA | formation Security Specialist Fireman Apprentice |
| ESKFA | Information Security Specialist Fireman Apprentice |
| ESKFA | lecom Censorship Technician Fireman Apprentice |
| ESKFA | Telecom Censorship Technician Fireman Apprentice |
| ESKFN | Chemical Warfare Man Fireman |
| ESKFN | emical Warfare Man Fireman |
| ESKFN | formation Security Specialist Fireman |
| ESKFN | Information Security Specialist Fireman |