Smith-Cooper® Weld Neck Flange, Raised Face, Series: S1014WN4, 4 in Nominal, 4.03 in Inside Dia, 0.94 in Thickness, SCH 40/STD Bore, 8-1/2 in Bolt Circle, 8 Bolt Holes, 0.88 in, 9 in Outside Dia, 150 lb, 6.44 in Hub Dia, 3 in Length Through Hub, Forged 304/304L Stainless Steel