| Acronym | Meaning |
 | BLR | Boiler |
| PGSE | Payload Ground Support Equipment |
| SCFS | Standard Cubic Feed Per Second |
| RF | Right Forward |
| CDMS | Command And Data Management Subsystem |
| VFO | Variable Frequency Oscillator |
| FIR | Fuel Indicating Reading |
| SFU | Standard Firing Unit |
| H-CITE | Horizontal-Cargo Integration Test Equipment |
| OA | Office Of Applications (now OSTA) |
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