| Acronym | Meaning |
| RECIRC | Recirculating |
| FFIBL | Fuel Filter Impending Bypass, Left Engine |
| COMBIMAN | Computerized Biomechanical Man-model |
| ER | Entity Relationship |
| IC | Integrated Circuit |
| PMTC | Pacific Missle Test Center (point Mugu) |
| UBA | Underwater Breathing Apparatus (mk 15) |
| FBM | Fleet Ballistic Missile Submarine Training Center |
| NATO | North Atlantic Treaty Organization |
| SWCL | Special Warfare Craft, Light |