| Acronym | Meaning |
 | OMSF | Office Of Manned Space Flight (now OSTS) |
| ECA | Engineering Change Analysis |
| NO | Normally Open |
| FOPP | Follow On Parts Production |
| SACS | SuPport Action Center |
| SSC | L Shuttle System Commonality List |
| S/L | Shop/Laboratory |
| EMSS | Electromagnetic Servoactuator SYstem |
| GAS | Get-Away Special |
| CDMS | Command And Data Management System |
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