pipe fittings; an, npt????
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Joined: Oct 2001
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From: by the beach west la
what does it mean? also what size is the autometer fp gauge fitting. is it a 4an.
[Modified by morepoop4u, 12:12 PM 8/4/2002]
[Modified by morepoop4u, 12:12 PM 8/4/2002]
NPT stands for National Pipe Thread.
check this lttlie .pdf out.
http://www.tflx.com/pdf/nptsizes.pdf
AN in -4 AN stands for Air force/Navy. AN is another interesting thread. Back in the days, military thought that the hardware that the normal people use were junks(alot of them still are). And AN bolts are under their specs. For more info, read Carroll smith's "Nuts, Bolts and Plumbing Handbook".
check this lttlie .pdf out.
http://www.tflx.com/pdf/nptsizes.pdf
AN in -4 AN stands for Air force/Navy. AN is another interesting thread. Back in the days, military thought that the hardware that the normal people use were junks(alot of them still are). And AN bolts are under their specs. For more info, read Carroll smith's "Nuts, Bolts and Plumbing Handbook".
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