| Acronym | Meaning |
| OPI | Optional Procedure Indicator |
| DD250 | Material Inspection And Receiving Report |
| TAD | Temporary Additional Duty |
| X3H4 | Framework Convergence Working Group |
| TWG | Technical Working Group |
| CFET | Centrifuge-based Flight Environment Trainer |
| TEPP | Test And Evaluation Program Plan |
| SPNR | Spinner |
| OPLSM | Operational Phase Logistic Suuport Manager |
| RILSD | Resident Integrated Logistics Support Detachment |