AN stands for??

[Clarence Wood]

  I am at a loss.  I can not find out what an 'AN' size fitting is/means.  I have found out that 'Boss' is the same thread size.  I can go into a parts store and ask for a #10 MB (Male Boss) fitting and it is exactly the same as an AN #10 fitting; the only difference is that the guys in the parts store don't know what an AN is.  When I took my FPR in and showed them they said "Ah hell, that's a #10 MB to 3/8 fitting".  Can anybody tell me what the history of 'AN' is?  Also, what is the history of Boss, and why are they the same but called different names?

Clarence


IZCC #3426
 1982 280ZX Turbo GL
 1966 El Camino
 1982 Yamaha Maxim XJ-1101J Motorcycle
 1975 Honda CB750 SS (black engine)
 1986 Snapper Comet lawn mower
Clarence Wood
Software&Such...
clarencewood at centuryinter.net
Savannah, TN.