Blind Flange Flat 1 1/2 in Nominal Pipe Size 5 in Flange Outside Diameter 5/8 in Flange Thickness Schedule 80 Class Class 150 For Pipe Schedule 80 CPVC 150 psi Maximum Operating Pressure 210 Degrees F Number of Bolt Holes 4 3 7/8 in Bolt Circle Diameter 1/2 in Bolt Hole Diameter 3/4 in Overall Length Gray