| Acronym | Meaning |
| NAVELECSYSCOM | Naval Electronics Systems Command |
| YFU | Harbor Utility Craft (self Propelled)(lighter) |
| DODISS | Department Of Defense Index Of Specifications And Standards |
| WRU | Weapons Replaceable Unit |
| WFOV | Wide Field Of View |
| LAT | Latitude |
| OCM | On Condition Maintenance |
| SRVM | Specification Requirements Verification Matrix |
| VTR | Video Tape Recorder |
| DBDD | Data Base Design Document Udi-e-21250b/mod |