| Acronym | Meaning |
| RIS | Reporting Identification Symbols |
| OV | Orbiter Vehicle |
| MFBP | Manufacturing Flow And Building Plan |
| FD | WMR Food Warmer |
| IP | Igloo Pallet |
| G | Giga (Billion) |
| VMF | Vertical Maintenance Facility |
| CCU | Crewman Communications Umbilical |
| SAS | Stimuli Analog Refresh Table |
| OMMH | Orbiter Maintenance Man-Hours |