This is a genuine BMW hex nut, part number 61 31 1 387 053. The number stamped on the part is 61311387053; BMW's catalog files it under the short number 1387053. You will find it on our Electrical shelf, under Switch.
It fits the E36 sedan, coupe, convertible and touring (318i, 320i, 323i, 325i and 328i, 1992–1999), with the M40, M42, M43, M44, M50 or M52 engines — and the European-market versions.
BMW draws it on 2 diagrams, among them Various switches (61_0063) and Various switches (61_0144). It weighs about 1 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
