| Abbreviation | Definition |
|---|---|
| EAD2 | Engineering Aid (draftsman) Petty Officer 2nd Class |
| EAD2 | gineering Aid (draftsman) Petty Officer 2nd Class |
| EAD3 | Engineering Aid (draftsman) Petty Officer 3rd Class |
| EAD3 | gineering Aid (draftsman) Petty Officer 3rd Class |
| EADCN | Engineering Aid (draftsman) Constructionman |
| EADCN | gineering Aid (draftsman) Constructionman |
| EADCP | Engineering Aid ((draftsman)) Constructionman Apprentice |
| EADCP | gineering Aid ((draftsman)) Constructionman Apprentice |
| EADCR | Engineering Aid (draftsman) Constructionman Recruit |
| EADCR | gineering Aid (draftsman) Constructionman Recruit |
| EAS1 | Engineering Aid (surveyor) Petty Officer 1st Class |
| EAS1 | gineering Aid (surveyor) Petty Officer 1st Class |
| EAS2 | Engineering Aid (surveyor) Petty Officer 2nd Class |
| EAS2 | gineering Aid (surveyor) Petty Officer 2nd Class |
| EAS3 | Engineering Aid (surveyor) Petty Officer 3rd Class |
| EAS3 | gineering Aid (surveyor) Petty Officer 3rd Class |
| EASCN | Engineering Aid (surveyor) Constructionman |
| EASCN | gineering Aid (surveyor) Constructionman |
| EASCP | Engineering Aid (surveyor) Constructionman Apprentice |
| EASCP | gineering Aid (surveyor) Constructionman Apprentice |