Flange Application Gas and Fuel Oil Fitting Side A Connection Type Press-Fit Fitting Side B Connection Type Flange Fitting Material Carbon Steel Fitting Side A Pipe Size 3/4 in O-Ring Material HNBR Specific Fitting Shape Flange Adapter Finish/Coating Zinc Nickel-Plated Overall Length 2 3/4 in Bolt Hole Diameter 5/8 in Maximum Operating Pressure 200 psi Maximum Operating Temperature 250 Degrees F