| Acronym | Meaning |
| IPE | Industrial Plant Equipment |
| MD | Microdot |
| CIE | Communications Interface Equipment |
| PCM | Punch Card Machine |
| PVR | Precision Voltage Reference |
| MPP | Material Processing Procedure |
| DF | Development-Forward |
| MMS | Mission Modular Spacecraft |
| RC | Range Command |
| INTRG | Interrogate |