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The designer is unavailable right now. I, too, would say FNPT = Female NPT. The company that I work for routinely uses it to mean this. The "correct" (i.e. standard) shorthand would be NPT (F). As everyone has indicated FNPT is Female National Pipe thread Tapered, and conversely MNPT is Male National Pipe thread Tapered.What's the difference between mnpt and FNPT pipe thread?
As everyone has indicated FNPT is Female National Pipe thread Tapered, and conversely MNPT is Male National Pipe thread Tapered. I run across this all the time in the oil fields. You do know there is a straight pipe thread too?... NPS Good Luck!...What does FNPT stand for in First Nations?
Acronym Definition FNPT Female National Pipe Thread FNPT Flight & Navigation Procedures Trainer FNPT Fédération Nationale des Planteurs de Ta ... FNPT First Nations Poker TrailWhen to use FNPT or NPT in Dryseal?
If you are looking to call out a female pipe thread you should use FNPT, but if its a Dryseal thread it should be NPTF. Don't get the two mixed or you could get into a heap of trouble when it comes time to assemble and test your connections.