The invention relates to a wall feed-through fitting for passing elongated parts, pipes, wires, and/or cables through a wall of piece of equipment, housing or component provided with the wall that has a throughgoing hole and where a flange (1) is fastened to the wall by a fastener, the flange having a hole (2) coaxial to the throughgoing hole, wherein the flange (1) has two half-flanges (3) that abut at a parting plane crossing the hole (2), the half-flanges are connected or connectable to one another by integrally molded connecting formations (4), and the half-flanges (3) are of identical shape with each of the half-flanges (3) having a first connecting formation at one respective parting face and a second connecting formation at a second respective parting face and the first and second connecting formations are different from one another but fit complementarily with one another in a desired mounting position of the half-flanges (3).