| Abbreviation | Definition |
|---|---|
| SSPAO | Space Station Safety Product Assurance Office |
| SSPC | Spacelab Stored Program Command |
| SSPD | Shuttle System Payload Data |
| SSPD | Shuttle System Payload Definition (Study) |
| SSPD | Shuttle System Payload Description |
| SSPDA | Space Shuttle Payload Data Activity |
| SSPDB | Subsystem Power Distribution Box |
| SSPDB | Sub-System Power Distribution Box |
| SSPDS | Space Shuttle Payload Data Study |
| SSPF | Space Station Processing Facility |
| SSPG | Sensor Signal Processing Group |
| SSPGSE | Space Shuttle Program Ground Support Equipment |
| SSPM | Space Shuttle Program Manager |
| SSPO | Space Shuttle Program Office |
| SSPO | Space Shuttle Projects Office |
| SSPP | Shuttle Small Payloads Project |
| SSPPSG | Space Shuttle Payload Planning Steering Group |
| SSPRO | Space Shuttle Program Resident Office |
| SSPS | Space Shuttle Program schedule |
| SSPS | Space Solar Power Station |