| Acronym | Meaning |
| CVAS | Configuration Verification Accounting System |
| RFC | Request For Change Revolution |
| MMAS | Material Management Accounting (Accountability) System |
| GCTS | Gas Component Test Stand |
| MLG | Main Landing Gear |
| OD | Outside Diameter |
| MR | Mixture Ratio |
| M-M-L-S | Model-Modes-Loads-Stresses |
| PDRSTA | Payload Deployment And Retrieval System Test Article |
| PI | Principal Investigator |