Female Connector Application Gases Liquids Fitting Side A Connection Type Compression Fitting Side B Connection Type FNPT Fitting Material Brass Fitting Side A Tube Outer Diameter 1/2 in Maximum Operating Temperature 400 Degrees F Overall Length 1 27/32 in Specific Fitting Shape Straight Adapter Fitting Side B Pipe Size 1/2 in Compatible Fitting Brands CPI Thread Size A 3/4-20 Series CPI(TM) System of Measurement Imperial Standards ASME SB75 ASTM B75 Hex Size 1 1/16 in