| Acronym | Meaning |
| SCST | Submarine Combat System Trainers (21a Series) |
| ASO | Aviation Supply Office (philadelphia) |
| FSS | Fin Stabilizer System (ffg-7) |
| ATP | Acceptance Test Procedure |
| FMI | Failure Mode Indicator |
| SEAS | Surveillance Environ Acoustic Supp |
| YTB | Large Harbor Tug (self-propelled) |
| SHA | System Hazard Analysis |
| FADECAL | Fadec, Channel A, Left Engine |
| FSC | Federal Supply Classification |