This is an old revision of the document!
N
Needle roller bearing
Nm
Abbreviation for Newton Meters
NOx
Oxides of Nitrogen. A common pollutant emitted by gas engines at high temperature 1)
NPSC
Abbreviation for: National Pipe Straight Coupling (a U.S. standard in piping)
1)
Haynes Sportster manual 1970-2010 pg REF*50
