| Acronym | Meaning |
| SMD | Spacelab Mission DeveloPment |
| HEX | Heat Exchanger |
| MCA | Monitoring And Control Assembly |
| GYROCOMP | Gyrocompassing |
| EFA | Experiment Flight Applications |
| RPS | Record And Playback System (Subsystem) |
| PN | Part Number (P/N Preferred) |
| D | LSC Defense Logistics Service Center |
| EXTGH | Extinguish |
| VIB | Vertical Integration Building |