A plug connector part for an optical and/or electrical plug connection has at least a housing and at least a clamping sleeve, which are connected to each other by a releasable screw connection, wherein a strain relief arrangement for a cable guided into the plug connector part is arranged inside the housing and/or the clamping sleeve, which strain relief arrangement includes a strain relief sleeve, which is supported on an outer sleeve. The strain relief arrangement includes a sleeve opening toward the front in a funnel-shaped manner at least over a part of its length, through which litz wires, fibers or the like of the cable are guided and fixed therein.