Swivel Union Application Air Fitting Side A Connection Type Swivel FNPT O-Ring Fitting Side B Connection Type Swivel FNPT O-Ring Finish/Coating Zinc Nickel-Plated Fitting Material Steel Fitting Side A Tube Outer Diameter 3/8 in Fitting Side B Tube Outer Diameter 3/8 in Maximum Operating Pressure 9 200 psi Maximum Operating Temperature 500 Degrees F Overall Length 1 25/32 in Specific Fitting Shape Straight Swivel Connector Compatible Fitting Brands Seal-Lok Series Seal-Lok