A cable system component includes a housing having a seal-grasping surface portion and a seal having an elastically deformable tubular body attached to the housing. The body has a posterior sealing surface that cooperatively engages the seal-grasping surface portion of the housing and a forward sealing surface configured to cooperatively engage an interface port. The forward sealing surface includes a radially inner facet divided into a forward portion and a rearward portion by an inner annular groove in the inner facet. The seal includes an anterior portion and a posterior portion connected by a thinned neck portion, the forward portion of the radially inner facet is on the anterior portion, and the rearward portion of the radially inner facet is on the posterior portion. The rearward portion of the radially inner facet includes a sealing edge surface that is configured to cooperate with an outer surface of the interface port in order to provide a sealed connection between the connector and the port when the anterior portion is removed from the seal. The inner annular groove is radially aligned with the neck portion and is configured to keep the neck portion away from the sealing edge of the rearward portion of the radially inner facet when the anterior portion is removed from the seal.