A seal for a cable and connector interconnection includes a unitary elastic primary body with a primary bore therethrough. The primary bore is provided with a primary cable outer diameter seal portion at a cable end, the cable outer diameter seal portion adjacent a primary connector cavity portion, the primary connector cavity portion adjacent a coupling nut cavity portion, and the coupling nut cavity portion adjacent a connector neck seal portion at a connector end. The coupling nut cavity portion is longitudinally aligned with a coupling nut of the connector and is provided with a greater inner diameter than the cable outer diameter seal portion and the connector neck seal portion.