| Acronym | Meaning |
| KOI | Kano |
| NSTL | National Space Technology Laboratory (was MTF) |
| ESTA | Escape System Test Article |
| MEIU | Main Engine Interface Unit |
| PTMS | Precision Torque Measuring System |
| EHOT | External Hydrogen/Oxygen Tank |
| IP | Identification Of Position |
| OISSP | Office Of Interim Space Station Program |
| SFL | Secondary Freon Loop |
| SOC | SYstem OPtion Controller |