| Abbreviation | Definition |
|---|---|
| PC | Project Control |
| PC | Pulsating Current |
| PCA | Payload Clamp Assembly |
| PCA | Pitch Change Axis |
| PCA | Pitch Control Assembly |
| PCA | Pneumatic Control Assembly |
| PCA | Point of Closest Approach |
| PCA | Power Control Assembly |
| PCA | Primer Carrier Assembly |
| PCA | Primer Chamber Assembly |
| PCA | Pyrotechnic Carrier Assembly |
| PCASS | Program Compliance Assurance and Status System |
| PCB | Power Circuit Breaker |
| PCB | Power Control Box |
| PCB | Product Configuration Baseline |
| PCC | Pad Control Center |
| PCC | Payload Control and Checkout |
| PCC | Power Converter for CDMU |
| PCC | Production Control Center |
| PCC | Production Control Centers |