| Abbreviation | Definition |
|---|---|
| EN1 | gineman Petty Officer 1st Class |
| EN2 | Engineman Petty Officer 2nd Class |
| EN2 | gineman Petty Officer 2nd Class |
| EN3 | Engineman Petty Officer 3rd Class |
| EN3 | gineman Petty Officer 3rd Class |
| ENC | Engineman Chief Petty Officer |
| ENC | gineman Chief Petty Officer |
| ENCM | Engineman Master Chief Petty Officer |
| ENCM | gineman Master Chief Petty Officer |
| ENCS | Engine Man Senior Chief Petty Officer |
| ENCS | gine Man Senior Chief Petty Officer |
| END1 | Engine Man ((diesel)) Petty Officer 1st Class |
| END1 | gine Man ((diesel)) Petty Officer 1st Class |
| END2 | Engine Man (diesel) Petty Officer 2nd Class |
| END2 | gine Man (diesel) Petty Officer 2nd Class |
| END3 | Engine Man (diesel) Petty Officer 3rd Class |
| END3 | gine Man (diesel) Petty Officer 3rd Class |
| ENDC | Engine Man (diesel) Chief Petty Officer |
| ENDC | gine Man (diesel) Chief Petty Officer |
| ENDFA | Engine Man (diesel) Fireman Apprentice |