Van Stone Flange Raised 1 1/2 in Nominal Pipe Size Spigot 5 in Flange Outside Diameter 3/4 in Flange Thickness Schedule 80 Class Class 150 For Pipe Schedule 80 CPVC 150 psi Maximum Operating Pressure 176 Degrees F Number of Bolt Holes 4 3 7/8 in Bolt Circle Diameter 1/2 in Bolt Hole Diameter 2 7/16 in Overall Length Gray