The most reasonably priced component used on the Rx100 1996 36l Europe 2636l-200e1 Side Cover is the Nut Spring 116283170100.
The Side Cover assembly is constructed from several parts from which the Cover Side 2 Rh(mmr) is the most expensive.
Some items from this specific schematic: Washer, Plate (j18), Nut, Spring (3m5), Cover Side 1 Lh(mmr), Emblem 4 Rh.
