| Acronym | Meaning |
| ELV | Electrically Operated Valve |
| MSS | Manufacturers Standardization Society |
| GFRP | Graphite Fiber Reinforced Plastics |
| NOSE | To Z-ANose To Z-Axis |
| SRU | Space Replaceable Units |
| FSK | Frequency Shift Keyed (Keying) |
| TCP | Test Checkout Procedure |
| OFI | Operational Flight Instrumentation |
| RSL | Resource Support List |
| SCA | Sequence Control Assembly |