Abstract: A female guidance and polarizing means for either the male or female parts of a separable electrical connector which carry mating eletrical contacts. The polarizing and guide means is mounted in predetermined positions on either the male or female connector parts. The removable bushing has a portion which is keyed to the male polarizing pin to permit the connector parts to be mated only when the correct parts are presented to each other. The removable female polarizing guide bushing is made of resilient plastic material having a keyway, a flange, a polygonal body section, and a plurality of fingers with shoulders for engagement with the connector parts. The bushing is inserted into a bore in the connector body. The bore comprises a series of three axially aligned apertures. The fingers snap into one of these apertures and the bushing is thereby retained from moving longitudinally in one direction. The flange fits into an aperture which has a diameter greater than that of the flange.