Lap Joint Lap Joint Flange, ANSI Class 400 – Coastal Flanges April 17, 2021 Posted by PipeAdmin 17 Apr Nominal Pipe Size (NPS): 1/23/411-1/41-1/222-1/233-1/245681012141618202224 Outside Diameter (O): 3.75 Thickness (T): 0.56 Length Thru Hub (Y): 0.88 Hub Diameter (X): 1.38 Radius (r): 0.13 Bore (B): 0.90 Approximate Weight (lbs): 2 Bolt Circle (C): 2.63 Number of Holes: 4 Diameter of Holes: 0.63 [hoops name=”footer-coastal-flange-contact”]