The problem, however, that the overall height of the sealing ring is so high that the housing base can no longer be screwed because the thread no longer applies. Because of the sealing ring is made of rigid plastic and can not be compressed as a rubber seal.
So the acquisition was worthless because, although the was perfect seal millimeter accuracy exkakt but prevented by the height / thickness of a screwing of the housing cover.
A relevant question or complaint to Fa.Minott unfortunately remained completely unanswered.