| Acronym | Meaning |
| TI | Training Integrator (Integration) |
| PAR | Precision Approach Radar |
| MFG | Major Functional Group |
| OBCO | Onboard Checkout (Instrumentation) |
| OR | Oxygen Relief |
| FMOF | First Manned Orbital Flight |
| MS | Machine Steel |
| HSS | Hydraulic Subsystem Simulator |
| VIB | Vertical Integration Building |
| NORDSAT | Scandinavian Countries Broadcast Satellite |