| Acronym | Meaning |
 | EST | Estimate(d) |
| PER | Period |
| LIM | Limit |
| QATT | Qualification For Acceptance Thermal Testing |
| PDV | Pressure Disconnect Valve |
| R | LEO Request Liaison Engineering Order |
| SFCS | Survival Flight Control System |
| F/0 | Fuel/Oxidizer Ratio |
| IAD | Interface Analysis Document |
| FMOFPL | First Manned Orbital Flight With Payload |
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