| Acronym | Meaning |
 | EVCS | External Voice Communication System |
| MYP | Multi-year Procurement |
| NDI | Non Destructive Inspection |
| ASL | Above Sea Level |
| IUS | Interim (inertial) Upper Stage |
| TESSDL | Training Equipment Sub-system Data List |
| STAB | Stabilizer |
| TCC | Target Control System Change (tdc 77) |
| VSD | Vertical Situation Display |
| PCCL | Pre-contract Cost Letter |
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