Reducing Coupling Metal face Seal Fittings- Metal Gasket Face Seal FittingsPart No.UCR SizeDimension (mm)MinchAHF-CC-04-1/430.2019.059/16-18UNFF-CC–08-1/233.3026.987/8-14UNFF-CC–12-3/442.7038.101 1/4-18UNFF-CC–16-151.8044.451 1/2-20UNF