| Acronym | Meaning |
 | MWB | MMWB Master Work Book |
 | MWG | MMWG Maintenance Analyzer Working Group |
 | MWP | MMWP Maximum Working Pressure |
 | MWPR | MMWPRMonthly Work Package Report |
 | MWR | MMWR Mean Width Ratio |
 | MWV | Mmwv Maximum Working Voltage |
 | MX | Mmx Multiplex |
 | MY | MMY Man Year |
 | MYTA | MMYTAMaintainability Task Analyses |
 | MYVAL | MMYVALMaintainability Evaluation |
 | MZFW | MMZFWMaximum Zero Fuel Weight |
 | N | Neutrons |
 | N | Newton |
 | N | North |
 | N&G | Navigation And Guidance (G&N Preferred) |
 | N/0 | Normally Open |
 | N/A | Next Assembly |
 | N/A | Not Applicable |
 | N/B | Narrow Band |
 | N/C | Normally Closed |
 | N/C | Nose Cone |
 | N/C | Not Critical |
 | N/C | Numerical Control |
 | N/D | Need Date |
 | N/P | Not Provided |
 | N/W | Network |
 | N02 | Nitrogen Dioxide |
 | N2 | Nitrogen |
 | N2 | Nitrogen |
 | N204 | Nitrogen Tetroxide |
 | N2H4 | Hydrazine |
 | N2HO4 | Nitrogen Peroxide |
 | N2O4 | Nitrogen Tetroxide |
 | NA | Next Action |
 | NA | Not Applicable |
 | NAAL | North American Aerodynamic Laboratory (Wind Tunnel) |
 | NAC | Nacelle |
 | NAEC | Naval Air Engineering Center |
 | NAM | National Association Of Manufacturers |
 | NAP | Navigation Analysis Program |
 | NAR | Numerical Analysis Research |
 | NARS | National Archives And Record Services |
 | NAS | National Academy Of Sciences |
 | NAS | National Aircraft Standard |
 | NAS | Naval Air Station |
 | NASA | National Aeronautics And Space Administration |
 | NASA | National Aeronautics And Space Administration |
 | NASCOM | NASA Communications (Network) |
 | NASCOM | NASA Communications Network |
 | NASTRAN | NASA Structural Analysis |