Electrical connector hub having improved sealing ring

An electrical connector for securement to a wall of an electrical enclosure comprising:

• a hub having a cable receiving end, a cable egressing end and an internal bore therebetween, said cable egressing end being dimensioned for passage through an opening in said wall;
• a hub nut for attachment to said cable egressing end of said hub for securing said hub to said wall;
• said hub further including an annular shoulder extending transversely between said cable receiving end and said cable egressing end of hub for abutment against said wall upon attachment of said hub nut to said hub, said shoulder having an annular groove therein, said groove having a given transverse and longitudinal dimension;
• and
• a sealing ring positioned in said groove for sealing engagement with said wall, said sealing ring having body of noncircular cross-sectional shape having a first dimension which is greater than the longitudinal dimension of said groove and a second dimension within said groove which is less than the transverse dimension of said groove, said sealing ring further including radially inwardly extending skirt positioned within said groove said skirt having a transverse dimension such that the transverse dimension of said body and said skirt exceeds said transverse dimension of said groove.