GS81104 is a housing locating washer, one of the components of the single-direction axial cylindrical roller bearing set 811, used together with the K811 roller and cage assembly and the WS shaft locating washer. It has an outside diameter of 35.0 mm and a net mass of 12.5 g, forming the flat running surface on the housing side against which the roller and cage assembly rotates. Because GS81104 supports load in one axial direction only, it must always be fitted together with K811 and WS to form a complete working set. The flat locating faces on both washers require a rigid, axially loaded seating arrangement, with no radial load-carrying capability provided by this washer alone.