Male Connector Application Gases Liquids Fitting Side A Connection Type Compression Fitting Side B Connection Type MNPT Fitting Material Brass Fitting Side A Tube Outer Diameter 3/8 in Maximum Operating Pressure 4 100 psi Maximum Operating Temperature 400 Degrees F Overall Length 1 9/16 in Specific Fitting Shape Straight Adapter Fitting Side B Pipe Size 1/4 in Compatible Fitting Brands A-LOK Thread Size A 9/16-20 System of Measurement Imperial Standards ASME SB75 ASTM B75