A housing component, for example a housing which accommodates electronics, such as a transmission control has a plurality of feedthroughs and a flatness zone. The housing component has a recess area in the region of the flatness zone. The housing component is reinforced through the recess and the flatness zone, which is disposed in the region of the recess, has a deviation from flatness of ≦0.1 millimeter (mm), for example in the range of 0.005 mm to 0.02 mm per 10 mm length.