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 3/4 in Fitting Side B Tube Outer Diameter 3/4 in Maximum Operating Pressure 3 250 psi Maximum Operating Temperature 450 Degrees F Overall Length 1 13/16 in Specific Fitting Shape Straight Connector Compatible Fitting Brands Air-Way Parker Thread Size A 1 1/16-12 Thread Size B 1 1/16-12