A connector housing (20) includes a receptacle (22) to be arranged in an opening (91) of a panel (90) obliquely with respect to a plate surface of the panel (90) and a jaw (27) protruding out from the housing body and having one surface facing the plate surface of the panel (90). A sealing member (50) has an annular shape to surround an outer periphery of the connector housing (20) and includes a panel lip (57) to be held in close contact with the plate surface of the panel (90) and inner and outer housing lips (58) to be held in close contact with the one surface of the jaw (27). A thickness of the sealing member in an in-out direction is reduced from the side of the housing lips (58) to the side of the panel lip (57).