| Abbreviation | Definition |
|---|---|
| SSF | SRB Storage Facility |
| SSFA | Space Station Furnace Facility |
| SSFGSS | Space Shuttle Flight and Ground System Specification |
| SSFL | Santa Susana Field Laboratory |
| SSFMB | Space Station Freedom Manned Base |
| SSFP | Space Station Freedom Program |
| SSFS | Space Shuttle Functional Simulator |
| SSHB | Station Set Handbook |
| SSHPF | Space Station Hazardous Processing Facility |
| SSI | Significant Structural Item |
| SSIBD | Shuttle System Interface Block Diagram |
| SSID | Shuttle Stowage Installation Drawing |
| SSIP | Systems Software Interface Processing |
| SSIS | Space Station Information System |
| SSITP | Shuttle System Integrated Test Plan |
| SSL | System Software Loader |
| SSM | Sample Support Module |
| SSM | Spacecraft Systems Monitor |
| SSM | Standard Solar Model |
| SSM | SubSystem Manager |