Thread: NPT vs. ID
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Unread 01-08-2003, 12:07 AM   #3
redleader
Thermophile
 
Join Date: Jun 2001
Location: The deserts of Tucson, Az
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3/8NPT is about 5/8 wide actually. The 3/8 just references the threading, not the width of the pipe (though the two are proportional).
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