Electrical Engineering Abbreviations
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
'Na' to 'Ng', 'Ni' to 'Nz'
| n | - | nano (10-9), refractive index |
| NO | - | spectral noise density, sea level refractivity |
| NA | - | numerical aperture |
| NAK | - | negative-acknowledge character [ASCII Characters] |
| NAN | - | niche area network |
| NAS | - | Network Attached Storage |
| NASA | - | National Aeronautics and Space Administration |
| NATA | - | North American Telecommunications Association |
| NAVSTAR | - | Navigational Satellite Timing |
| NBFM | - | narrow-band frequency modulation |
| NBH | - | network busy hour |
| NBRVF | - | Narrow-band radio voice frequency |
| NBS | - | National Bureau of Standards [now NIST] |
| NBSV | - | narrow-band secure voice |
| NBT | - | No Bus Turn-around |
| NC | - | Not Connected [pin], Normally Closed [switch] |
| NCA | - | National Command Authorities |
| NCC | - | National Coordinating Center for Telecommunications |
| NCQ | - | Native Command Queuing |
| NCS | - | National Communications System, net control station |
| NCSC | - | National Communications Security Committee |
| NDCS | - | network data control system |
| NDI | - | Non-developmental Item |
| NEC | - | National Electric Code |
| NEMA | - | National Electrical Manufacturers Association |
| NEP | - | noise equivalent power |
| NES | - | noise equivalent signal |
| NEXT | - | Near-End Crosstalk |
| NF | - | Noise Figure |
| NFC | - | Near Field Communication |
| NFPA | - | National Fire Protection Association |
| NFS | - | Network File System |
| NGM | - | Next Generation Memory |
