| Abbreviation | Definition |
|---|---|
| NAOC | National Airborne Operations Center (E-4B Aircraft) |
| NAP | Norwegian Army Protocol |
| NAP | Not Authorized for POMCUS (Prepositioning Of Material Configured in Unit Sets) |
| NAP | Not Authorized Prepositioning |
| NAPA | Never Any Parts Available |
| NAPCAP | North Atlantic Treaty Organization (NATO) Allied Pre-Committed Civil Aircraft Program |
| NAP-D | Not Authorized Prepositioning-Deferred |
| NAPDD | Non-ACAT (Acquisition CATegory) Program Definition Document |
| NAPLPC | North American Presentation Layer Protocol Standard |
| NAPMA | North Atlantic Treaty Organization (NATO) Airborne Early Warning and Control Program Management Agency |
| NAPMIS | Navy Preventive Medicine Information System |
| NAPMO | NATO Airborne Early Warning and Control Program Management Organization |
| NAPR | NATO Armaments Planning Review |
| NAPS | Naval Academy Preparatory School |
| NAR | No Action Required |
| NAR | No Additional Requirement |
| NAR | Nonconventional Assisted Recovery |
| NAR | Notice of Ammunition Reclassification |
| NARAC | National Atmospheric Release Advisory Capability |
| NARC | Neptune's Army of Rubbish Cleaners |