Abstract: An annular plug coupling which can be fastened within an opening in a first component and has the following features: a central coupling seat, in particular a ball socket, to which a coupling head of a second part can be releasably connected, and an intermediate ring that includes a plurality of curved, radially inward-extending first spring elements connected to the ball socket, and a plurality of curved, radially outward-extending second spring elements which are provided with a locking connection at a radially outward end such that the plug coupling can be locked within the opening in the component.