NPT thread taper is 1 deg 47 mint... What is the allowable tolerance on the taper?? Even when the taper is over 2 deg the thread still pass on ring gauge 4.
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Fantastic ideas for a Fantastic World, I make the illogical logical.They put me in cars,they put me in yer tv.They put me in stereos and those little radios you stick in your ears.They even put me in watches, they have teeny gremlins for your watches