| Acronym | Meaning |
| NR | Submersible Research Vehicle (misc) |
| CAAS | Contractor Assistance And Advisory Service |
| TUE | Trainer Unique Equipment |
| SCCB | Software Configuration Control Board |
| OTPI | On Top Position Indicator |
| ICS | Intercommunication Control System |
| RCM | Reliability Centered Maintenance |
| DRRS | Drawing Research And Request Subsystem |
| VSD | Vendor Shipping Document |
| TWT | Traveling Wave Tube |