A female coaxial cable electrical connector includes an electrically conductive barrel or shell enclosing a contact carrier assembly. The contact carrier assembly consists of a cap member enclosing a subassembly that includes an elastomeric sleeve or tubing compressively but yieldably mounted over the contact receiving arms of a base member with an electrical contact secured between opposing ones of the two contact receiving arms. The electrical contact is formed from electrically conductive material, and includes two opposing half-sections that are mounted between the contact receiving arms of the base, and have side wing portions contacting one another, with opposing longitudinal semicircular grooves of the half-sections of the contact together forming a circular pathway for receiving a male electrical pin or the center conductor of a coaxial cable. When such a pin or center conductor is inserted into the electrical contact, the elastomeric sleeve initially yields on inward pressure to permit insertion of the pin, while maintaining sufficient inward pressure to force the semicircular grooves of the electrical contact to mechanically contact and surround the circumference of the male pin or center conductor, for substantially the full length of its insertion, thereby insuring a low resistance electrical contact therebetween.