The invention relates to a coaxial connector (1), comprising a first and a second connector part (2, 3) and an adapter (4) arranged therebetween. The first and the second connector part (2, 3) include a first inner conductor (5) and a first outer conductor (8), including a first internal cylindrical contact surface (24) and a second internal cylindrical contact surface (25), respectively. In a socket area (17) of the first inner conductor (5), a first mechanical operative-connection means interacts with a second mechanical operative-connection means (11) in the installed state in order to establish a mechanical connection (13) that is effective in the axial direction (z). The first inner conductor (5) protrudes beyond the level of the mechanical operative-connection means (10, 11) so the internal cylindrical contact surface (24) is able to compensate a large axial offset (dz) of the connector parts (2, 3) relative to the adapter (4).