| Abbreviation | Definition |
|---|---|
| SLAHTS | Stowage List and Hardware Tracking System |
| SLAK | Spacelab Late Access Kit |
| SLAM | Side Load Arrest Mechanism |
| SLAR | Side Looking Airborne Radar |
| SLAW | Station Logistics Analysis Worksheet |
| SLC | ERNO (Entwicklungts Ring Nord Organization) Spacelab Project Control |
| SLC | Scan Line Corrector |
| SLC | Shuttle Launch Complex (Vandenburg Air Force Base) |
| SLC | Space Launch Complex |
| SLCA | ERNO Spacelab Contract Administration |
| SLCC | ERNO Spacelab Configuration Management |
| SLCL | Shop/Lab Configuration Layout |
| SLD | Stiff-Leg Derrick |
| SL-D | German Spacelab |
| SLE | ERNO Spacelab Engineering |
| SLEMU | Spacelab Engineering Model Unit |
| SLF | Shuttle landing facility (KSC) |
| SLF | Shuttle Landing Facility (OLF) |
| SLI | ERNO Spacelab Integration and Test |
| SLIC | Super Lightweight Interchangeable Carrier |