| Acronym | Meaning |
| EXT | Extension |
| CONF | Conference |
| EH/M | Extension Hose/Moi!thpiece |
| ISPM | International Solar Polar Mission |
| FDS | Functional Design Specifications |
| HRS | Hours |
| MDDS | Material Directory Data Sheet |
| TCA | Thrust Chamber Assembly |
| FPBOV | Fuel Preburner And Oxidizer Valve |
| PCM | E Pulse-Code Modulation Event |