| Acronym | Meaning |
 | EIASN | End Item Assembly Sequence Number |
| HD | Hydrogen Drain |
| CLS | Contingency Landing Site(s) |
| CP-FEO | Cargo Facilities And GSE Projects Office (KSC) |
| TWTA | Traveling Wave Tube Amplifier |
| DEDA | Data Entry And Display Assembly |
| LPS | Liters Per Second |
| P/Y | Pitch/Yaw |
| DESPOT | Design Performance OPtimization |
| EOS | Emergency Oxygen Supply |
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