| Abbreviation | Definition |
|---|---|
| ENDFA | gine Man (diesel) Fireman Apprentice |
| ENDFN | Engine Man (diesel) Fireman |
| ENDFN | gine Man (diesel) Fireman |
| ENDFR | Engine Man (diesel) Fireman Recruit |
| ENDFR | gine Man (diesel) Fireman Recruit |
| ENFA | Engine Man Fireman Apprentice |
| ENFA | gine Man Fireman Apprentice |
| ENFN | Engine Man Fireman |
| ENFN | gine Man Fireman |
| ENFR | Engine Man Fireman Recruit |
| ENFR | gine Man Fireman Recruit |
| ENG1 | Engineman First Class |
| ENG1 | gineman First Class |
| ENG2 | Engineman Second Class |
| ENG2 | gineman Second Class |
| ENG3 | Engineman (gasoline) Petty Officer 3rd Class |
| ENG3 | gineman (gasoline) Petty Officer 3rd Class |
| ENGA1 | Engineman (aviation) First Class |
| ENGA1 | gineman (aviation) First Class |
| ENGA2 | Engineman (aviation) Second Class |