| Acronym | Meaning |
| PSE | Peculiar Support Equipment |
| SFEX | Solar Flare X-ray Polarimeter |
| RHC | Rotational Hand Controller |
| DA | Distribution Assembly |
| ACRC | Assured Crew Return Capability - Now ACRV |
| NRL | Naval Research Laboratory |
| REO | Request |
| DL | Downlink |
| SRO | Supervisor Range Operations |
| INTG | Integration |