Cable and Rigid Conduit Sealing Bushing, Conduit Size 5 Inch, Wire Size (1) 3.45 Inch/(2) 2 Inch/(3) 1.88 Inch/(4) 1.63 Inch, Diameter 6-1/4 Inch, Material Slotted PVC Coated Steel (Disc), Neoprene (Sealing Ring), Stainless Steel (Socket Head Cap Screw/Washer), Approval UL E-11857, Conduit Inner Diameter 5.047 Inch