| Acronym | Meaning |
| SSPD | Shuttle System Payload Data |
| OPBOV | Oxidizer Preburner Oxidizer Valve |
| OH | Overhead |
| EPDCS | Electrical Power Distribution And Control System |
| ESCU | Extended Service And Cooling Umbilical |
| CPC | ComputerProgramComponent |
| LMSC | Lockheed Missiles And Space Corporation |
| OPSS | Orbital Propellant Storage Subsystem |
| CSF | Cost Sensitivity Factor |
| CCL | Configuration Control Logic |