The invention provides a connector in which, in an over-mold process, it is possible to prevent a molten resin from flowing through inevitable gaps (88, 89) of a shell (80) into the inside of the shell, thereby preventing problems such as that movable portions of contacts (20) become immovable, from arising. The connector of the invention has a plug body (10) in which contacts (20) to be connected to a cable (70) are held by an insulative body (40), the body (40) is shielded by a shell (80) formed by a metal plate, and a part of the plug body (10) is over-molded. The body (40) has sealing portions (41, 42) which are fitted into gaps (88, 89) of the shell (80) to close the gaps (88, 89).