Filler neck

The socket has an inner plastic housing section with closure flap at the intake end, and an elastomer seal between them. The seal (6) is fastened, e.g. vulcanized or injected-molded on a seal carrier (5), which is connected on the plastic housing. It seals towards housing section (2) and closure flap (1). Carrier and seal are contained in an aperture (3) in the housing section. The seal has two sealing lips (6a), engage on the flap and the base of the aperture.