Steel City LS 102 Sealing Locknut, 3 4 in For Use With: IMC Rigid Steel City LS 102 Sealing Locknut, 3 4 in, For Use With Rigid IMC Bridgeport 143 Liquid Tight Sealing Locknut, 1 in, For Use With IMC Flexible electrical conduit pipe seal locknut 3 4'' Reditek Reditek EATON Crouse Hinds SL8 Sealing Locknut, 3 in, For Use With Rigid IMC Liquid Tight Flexible Conduit Fittings PVC Insulated With Locknut YouTube. EATON Conduit Sealing Locknut "Liquid Tight" Malleable Iron Zinc Plated Condition: New Size: 4" Color: Chrome MPN Model: SL10 Description: Crouse Hinds series locknuts, nipples, washers, reducers and plugs are used to secure rigid IMC conduit to an outlet box or enclosure, to join enclosures or conduit bodies together, to reduce the threaded opening on conduit bodies and fittings, or to plug an used threaded conduit opening.