Union Application Gases Liquids Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Stainless Steel Fitting Side A Tube Outer Diameter 5/16 in Fitting Side B Tube Outer Diameter 5/16 in Material Grade 316 Maximum Operating Pressure 8 100 psi Maximum Operating Temperature 649 Degrees C Overall Length 1 11/16 in Specific Fitting Shape Straight Connector Compatible Fitting Brands A-LOK Thread Size A 1/2-20 Thread Size B 1/2-20