IMC/Rigid Conduit Split Bushing; Type Threaded Female; Trade Size 3-1/2 Inch; Diameter 4.42 Inch; Height 0.7 Inch; Throat Type Nylon Plastic Insulated; Temperature Rating 105 Deg C; Material Non-Metallic; Standard Package 25; Approval UL 514B, UL (Canada and US); Used On Rigid/IMC/EMT Conduit; ROHS Compliant; Applicable Standard Federal Specification A-A-50553, NEMA FB-1; Used with Locknut, Connector to prevent Damage to Wire Insulation