| Abbreviation | Definition |
|---|---|
| NASSW | Naval Air Station, South Weymouth [MA] |
| NAT | Naturalistic Action Test |
| NAT | Non-Air-Transportable |
| NATA | Netley Abbey Tartan Army |
| NATC | Non-Air-Transportable Cargo |
| NATG | North American TopGun |
| NATOPS | Naval Air Training and Operating Procedures Standardization |
| NATS | New Aircraft Tool System |
| NATU | Naval Aircraft Torpedo Unit |
| NAU | Narcotics Assistance Unit |
| NAU | Nautical |
| NAU | Nautilus |
| NAU | Network Access Unit |
| NAUS | National Association for Uniformed Services |
| NAUTIMI | Nautical Mile |
| NAV | Naval |
| NAV | Navigation |
| NAV | Navigator |
| NAV | Navy |
| NAVAID | Navigational Aid |