UNION COMPRESSION SMALL HEX Application Air Fuel Hydraulic Oil Fitting Side A Connection Type Compression Finish/Coating Zinc Trivalent Fitting Material Steel Fitting Side A Tube Outer Diameter 2 in Fitting Side B Tube Outer Diameter 2 in Maximum Operating Pressure 1 800 psi Maximum Operating Temperature 450 Degrees F Overall Length 2 1/8 in Specific Fitting Shape Straight Connector Compatible Fitting Brands Air-Way Parker Thread Size A 2 1/2-12 Thread Size B 2 1/2-12