| Acronym | Meaning |
 | OPPAR | Orbiter Project(s) Parts Authorization Request |
| MPI | Mission Payload Integration |
| NAEC | Naval Air Engineering Center |
| HMV | Hydrogen Manual Valve |
| PLRD | Payload Requirements Document |
| WCCU | Wireless Crew Communication Unit |
| EOS | Earth Observation Satellite |
| MD | Biomedical Office (KSC Directorate) |
| MA | Material Authorization |
| SEAPG | Support Equipment Acquisition Planning Group |
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