RUBBER PLUG >2,5-4,0MM2 Connector Seal Type: Single Wire Seal (SWS) Cavity Diameter: .252 in Cavity Diameter: 6.4 mm Accepts Cable Insulation Diameter Range: .146 in Accepts Cable Insulation Diameter Range: 3.7 mm Single Wire Seal (SWS) .252" 6.4 mm .146" | TE Connectivity