| Acronym | Meaning |
| HMS | Helmet Mounted Sight |
| POSIX | Portable Operating System Interface |
| NTIS | National Technical Information Service |
| SSXBT | (an/bqh-7) |
| MFHBUMA | Mean Flight Hours Between Unscheduled Maintenance Actions |
| B/F | Blade Fold |
| YFND | Dry Dock Companion Craft (non-self Propelled) (misc) |
| NAV/COM | Navigation/communication |
| ARH | Arli-radiation Homer |
| STTWG | Submarine Training/trainer Working Group |