Insulated Grounding Bushing With Aluminum Lay-In-Lug, Size: 4 IN, Material: Malleable Iron, Finish: Zinc Electroplated Body, Tin Plated Lug, Connection: Threaded, Temperature Rating: 150 DEG C, Dimensions: 1.06 IN Height X 5.19 IN Diameter, Cable Size: 6 AWG - 250 KCMIL Stranded, Turning Radius: 3.81 IN, Standard: UL 467, E6581, CSA C22.2 No. 41, NEMA FB-1, For Use With Threaded Rigid Metal Conduit And IMC