| Acronym | Meaning |
 | NATTC | Naval Air Technical Training Center |
| NAV | Navigation |
| NAV/COM | Navigation/communication |
| NAVAIDS | Navigation (navigational) Aids |
| NAVAIR | Naval Air Systems Command |
| NAVAIRLANT | Naval Air Force Atlantic Fleet |
| NAVAIRPAC | Naval Air Force Pacific Fleet |
| NAVAIRSYSCOM | Naval Air Systems Command |
| NAVAIRSYSCOM | Naval Air Systems Command |
| NAVCIPS | Navy Standard Civilian Pay System |
| NAVDAC | Naval Data Automation Command |
| NAVDAF | Navy Data Automation Facilities |
| NAVELECSYSCOM | Naval Electronics Systems Command |
| NAVFACSYSCOM | Naval Facilities System Command |
| NAVMACS | Naval Modular Automated Communications Systems (an/syq-7(v)3) |
| NAVMAT | Naval Material Command (disestablished 85) |
| NAVMATCOM | Naval Material Command |
| NAVMTO | Navy Material Transportation Office |
| NAVPRO | Naval Plant Representative Office |
| NAVSEASYSCOM | Naval Sea Systems Command |
| NAVSEC | Naval Ship Engineering Center |
| NAVSHIPSYSCOM | Naval Ship Systems Command |
| NAVSTAR | Global Positioning System (gps) |
| NAVSUP | Naval Supply Systems Command |
| NAVSUPFAC | Naval Supply Facility |
| NAVTAG | Naval Tactical Gaming |
| NAVTIP | Navy Training Improvement Program |
| NAVTOLAND | Phase I Flight Test |
| NAVTRASYSCEN | Naval Training Systems Center |
| NAVWPNCEN | Naval Weapons Center (china Lake) |
| NAWC | Naval Air Warfare Center |
| NB | Narrowband |
| NBC | Nuclear, Biological And Chemical |
| NBCD | Network Based Collaborative Development |
| NCAB | Navy Contract Adjustment Board |
| NCAE | Naval Contract Adjustment Board |
| NCCPM | Navy Command & Control Process Model |
| NCCS | Navy Command And Control System Program (ashore And Afloat) |
| NCDT | Non-chargeable Down Time |
| NCLANG | Nacelle Angle |
| NCLT | Night Carrier Landing Trnr (a6-2f122) |
| NCMS | Navy Configuration Management System |
| NCPEG | Navy Contractor Performance Eval Group |
| ND | Nose Down |
| NDATS | Naval Data Automation Technical Standard |
| NDI | Non Destructive Inspection |
| NDI | Non Developmental Item |
| NDS | Non-developmental Software |
| NEARTIP | Mk 46 Torpedo |
| NEC | National Electrical Code |
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