| Acronym | Meaning |
| LL | Long Lead |
| MSU | Mass Storage Unit |
| PROM | Programmable Read-Only Memory |
| VGOR | Vehicle Ground Operation Requirements |
| SST | Subsystem Terminal On Spacelab |
| PRIM | Primary |
| EDDR | Electron DiPole-DiPole Reservoir |
| H | /'EHeat Exchanger |
| CC | Chief Counsel (KSC Directorate) |
| TBD | To Be Determined |