IMC/Rigid Conduit Connector; Type Compression; Throat Type Non-Insulated; Trade Size 4 Inch; Diameter 5-5/16 Inch; Length 3-3/8 Inch; Thread Length 1-7/8 Inch; Material Zinc Plated Malleable Iron; Standard Package 6; Approval UL 514B, UL (Canada and US); Used On IMC/Rigid Conduit; ROHS Compatible; Applicable Standard Federal Specification A-A-50553, NEMA FB-1