Used on 6640-01-399-0483. 14 all ends thread quantity per inch 1/2 gal steel half coupling outside dia of coupling is 1.063 IN6 zinc ball bearing surface treated plain npsc all ends thread series
14 1st end thread quantity per inch adapter, cga-350, hydrogen/methane adapter, pipeline, lh-ext to 1/4 inc h npt f 3000 psig rigid, threaded internal ngo 1st end thread series