<p>A connector (1) includes a connector main body (2) provided with an inner cylindrical portion (21), a connector cover (3) provided with an outer cylindrical portion (31), and a seal member (4). A protruding portion (33) and a covering portion (34) are arranged in an axial direction (31) of the outer cylindrical portion (31) and are provided on an outer peripheral surface of the outer cylindrical portion (31) of the connector cover (3). A direction regulating portion (23) is provided on the connector main body (2) so that a clearance is arranged between the inner cylindrical portion (21) and the direction regulating portion (23), and the direction regulating portion (23) is held by the protruding portion (33) and the covering portion (34). A protrusion (25) is provided on the direction regulating portion (23) to regulate a circumferential movement of the connector cover (3).</p>
