I'm using the fuel pressure regulator that came with my holley blue pump. It has one inlet and 2 outlets. One of the outlets is my supply line the other I want to block off and put a FPSS on. What I need to know is the threads for the regulator and the threads for an NX FPSS. Or a P/N of a fitting that allows me to do that.

Thanks for any help.

 

Probably gonna be -6an fittings. Here's a chart on how to measure and get the correct sizes for both -an and NPT.


This link goes more in depth on how to correctly measure for NPT fittings.
http://www.plumbingstore.com/pipethreadsizing.html