Capped Bushing, Size: 4 IN, Material: Malleable Iron, Polyethylene Cap, Finish: Zinc Electroplate, Connection: Threaded, Dimensions: 1.06 IN Height X 4.94 IN Diameter, Standard: UL 514B, E14814, CSA C22.2 No. 18.3, CSA 065178, NEMA FB-1, For Use With Locknut To Terminate Rigid Metal Conduit Or IMC To A Box Or Enclosure