| Abbreviation | Definition |
|---|---|
| PSLV | Polar Satellite Launch Vehicle |
| PSM | Phase Sensitive Modulator |
| PSM | Priority Select Module |
| PSM | Project Security Manager |
| PSM | Propellant Storage Module |
| PSM | Pyro Substitute Monitor |
| PSN | Purge Sequence Number |
| PSOP | Payload Systems Operating Procedures |
| PSP | Payload Signal Processor |
| PSP | Payload Specialist Panel |
| PSP | Payload Support Plan |
| PSP | Program Support Plan |
| PSP | Project Schedule Plan |
| PSPA | Pressure Static Probe Assembly |
| PSPL | Priced Spare Parts List |
| PSR | Pre-Shipment Review |
| PSR | Pulsating Source Of Radiation |
| PSRD | Program Support Requirements Document |
| PSS | Pad Safety Supervisor |
| PSS | Payload Specialist Station |