| Acronym | Meaning |
| SEB | Scientific Equipment Bay |
| SCDR | Shuttle Critical Design Review |
| TRI | Payload Furnished Mars Tape Recorder (1 Of 2) |
| MEIG | Main Engine Ignition |
| HSCU | Hydraulic SUPPly And Checkout Unit |
| GFD | Government Furnished Data |
| VR | Voltage Regulator |
| CAS | Control Augmentation System |
| EL | End Item |
| GO | GeGO General Order |