Lap Joint Flange, 3 in Nominal, 0.94 in Thickness, 6 in Diameter Bolt Circle, 4 Bolt Holes, 3/4 in Bolt Hole, 7-1/2 in OD, 285 psig Pressure, 150 lb Pressure Class, -20 to 1000 deg F, 4-1/4 in Diameter Hub, 1.19 in Length Through Hub, Forged Carbon Steel, Domestic