| Acronym | Meaning |
| OPN | Other Procurement, Navy |
| OPER | Operator |
| BIT | Built-in Test |
| TCO | Technical Contracting Office |
| SDR | System Design Review |
| MTBNDR | Mean Time Between No Defect Removals |
| EDMICS | Engineering Data Management Information & Control System |
| WWMCCS | Worldwide Military Command And Control System |
| FOSI | Functional Output Specification Instance |
| OBIGGS | Onboard Inert Gas Generating System |