| Acronym | Meaning |
| HPOT | High-pressure Oxidizer Turbopump |
| IPS | IRAN Inspection And Repairs As Necessary |
| FNT | Failure Notification Telex |
| N02 | Nitrogen Dioxide |
| PITG | Payload Integration Task Group |
| VATA | Vibro-Acoustic Test Article |
| FS | Fire Suppression |
| T/R | Transformer Rectifier |
| PF | Pulse Frequency |
| CCC | Contaminant Control Cartridge |