| Acronym | Meaning |
| LPFT | Low-pressure Fuel Turbopump |
| NET | PositivNet Positive Suction Pressure |
| CBRF3 | Bromotrifluoromethane (Fire-Extinguishing Material) |
| T/L | Talk And Listen |
| HAB | Habitation |
| IEA | Integrated Electronic Assembly |
| OESS | Orbiter/ET Separation Subsystem |
| MDF | Mating/Demating Facilities |
| SIL | Silver |
| IDT | I-load Data Tape |