| Acronym | Meaning |
 | RCB | Remote Circuit Breaker |
| EED | Electro (Electrical) Explosive Device |
| LTD | Lift-to-Drag |
| CTI | Critical Transportation Item |
| IP | Identification Of Position |
| CF | Centrifugal Force |
| MSC | Manned Spacecraft Center (changed To JSC) |
| MMH | Maintenance Man-Hour |
| F | Farad (SI Unit Of Capacitance) |
| NLT | Not Later Than |
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