| Acronym | Meaning |
| MOV | Main Oxidizer Valve |
| M/SCI | Mission/Safety Critical Item |
| SPR | Subcontractor Performance Review |
| SH2 | Supercritical Hydrogen |
| MELI | Master Equipment List Index |
| RSF | Receiving-Safing Facility |
| OFTDS | Orbital Flight Test Data System |
| IVSI | Instantaneous Vertical Speed Indicator |
| CSRP | Computers And Software Review Panel |
| CSTR | Canister |