| Acronym | Meaning |
 | EOHT | External Oxygen And Hydrogen Tanks |
| HFA | High Frequency Accelerometer |
| ROS | Removable Overhead Structure |
| REG | Regulator |
| CM | Control Monitor |
| CCM | Crew/Cargo Module |
| PLSS | Portable Life Support Subsystem |
| MMU | Manned Maneuvering Unit |
| DDU | Display Driver Unit |
| SAAMA | San Antonio Air Material Area |
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