Quote:
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Originally Posted by nexxo
Thanks for the info. It is all so confusing! As I'm in the UK, I worked with BSP thread, and here 1/4" BSP still has 1/4" ID, while 3/8" BSP has 3/8" ID. I sort of logically assumed that the same would apply to NPT.
Should have known better... since when does logic apply in PC modding!  |
i believe you will find that (assuming you're referring to the ID of the fitting..) it varies according to the material amongst other things and if it happens to be 1/4" ID then that's by chance rather than design..... i seem to recall you and i covered this ground in another
thread 
(on bit-tech iirc)
the OD of the thread is the standard - and is much larger than the nominal size
http://www.newmantools.com/taps/bsp.htm