| Acronym | Meaning |
![](file.png) | NETWORK | ProNetwork Program |
![](file.png) | NF | NNF Natural Flood |
![](file.png) | NFCS | NNFCSNuclear Forces Communications Satellite |
![](file.png) | NFPA | NNFPANational Fire Protection Association |
![](file.png) | NFS | NNFS Nozzle Flow Sensor |
![](file.png) | NFSP | NNFSPNonflight Switch Panel |
![](file.png) | NFW | NNFW Nonfuel Wasting |
![](file.png) | NG | NNG Narrow Gage |
![](file.png) | NGM | NNGM Nitrogen Generation Module |
![](file.png) | NGT | NASA Ground Terminal |
![](file.png) | NH | NNH Nominal Heig4t (Adjust Maneuver) |
![](file.png) | NH3 | ANH3 Ammonia |
![](file.png) | NH3 | Ammonia |
![](file.png) | NH4 | HNH4 Hydrazine |
![](file.png) | NHA | NNHA Next Higher Assembly |
![](file.png) | NHB | NNHB NASA Handbook |
![](file.png) | NHC | NNHC National Hurricane Center |
![](file.png) | NI | NNi Nickel |
![](file.png) | NI-SIL | NNI-SILNickel-Silver |
![](file.png) | NIA | NNIA NOVA Interface Adapter |
![](file.png) | NIB | NNIB Noninterference Basis |
![](file.png) | NIC | NNIC Not In Contract |
![](file.png) | NICD | NNICDNickel Cadmium |
![](file.png) | NIDS | NNIDSNetwork Interface Data System |
![](file.png) | NIL | NNIL No Limit (NL Preferred) |
![](file.png) | NIM | NNIM Nuclear Instrumentation Module |
![](file.png) | NIP | NNIP Network Input Processor |
![](file.png) | NITROGEN | GNitrogen Gage |
![](file.png) | NITROGEN | PNitrogen Purge Control |
![](file.png) | NJP | NNJP Network Job Processing |
![](file.png) | NL | NNL No Limit |
![](file.png) | NLA | NNLA Npxt Lower Assembly |
![](file.png) | NLG | Nose Landing Gear |
![](file.png) | NLG | Nose Landing Gear |
![](file.png) | NLT | Not Later Than |
![](file.png) | NLT | Not Less Than |
![](file.png) | NM | Nanometer |
![](file.png) | NM | Nautical Miles |
![](file.png) | NM | Network Manager (GSFC) |
![](file.png) | NM | Nonmetallic |
![](file.png) | NMAB | National Materials Advisory Board |
![](file.png) | NMC | National Meteorological Center |
![](file.png) | NMI | NASA Management Instruction |
![](file.png) | NMI | Nautical Mile |
![](file.png) | NMI | Nautical Miles |
![](file.png) | NMO | Normal Manual Operation |
![](file.png) | NMR | Nuclear Magnetic Resonance |
![](file.png) | NMT | Not More Than |
![](file.png) | NMT | Notification Of Master Tool |
![](file.png) | NMV | Nitrogen Manual Valve |