The two suggested products have pipe threads. One is NPT which is tapered, the other is G which is British Standard Parallel Pipe.
Bombman is looking for 1/2" UNC. Maybe the aforementioned products are compatible? Or, I may have misinterpreted the product specs.
I tried Googling "UNC Barbed" with no results after a brief search.
Last edited by henryanthony; 12-16-2013 at 06:56 AM.