| Acronym | Meaning |
| HS | Horizon Sensor |
| SAWD | Solid Amine Water Desorbed |
| PREVLV | Prevalve |
| JPL | Jet Propulsion Laboratory |
| CB | Circuit Breaker |
| MBFP | Manufacturing Build And Flow Plan |
| FTC | Florida Test Center (MDAC) |
| SAMTO | Space And Missi E Test Organization (VAFE3) |
| OFS | Orbital (Orbiter) Flight System |
| RFE | Request For Estimate |