| Acronym | Meaning |
| FITH | Fire-in-the-Hole |
| CKS | Checks |
| HUD | Head Up Display |
| ICC | Intercomputer Communication |
| FAO | Flight Activities Officer |
| G | Units Of Gravitational Force |
| SSUS | Spinning Solid Upper Stage |
| F | Farad (SI Unit Of Capacitance) |
| HCV | Hydrogen Check Valve |
| SSS | Subsystem Segment |