A cable entry seal is provided for passing a cable through an opening within a structure. The cable entry seal includes a body extending a length. A passageway extends through the length of the body. The passageway is configured to receive the cable therethrough. The body includes a flange and a seal fitting extending outwardly from the flange along the length of the body. The seal fitting includes an exterior sealing surface. The cable entry seal includes a seal conduit having a sealing end surrounding and sealingly engaged with the exterior sealing surface of the seal fitting. The seal conduit is configured to surround the cable when the cable is received through the passageway of the body. The cable entry seal includes a lock ring connected to the body. The lock ring surrounds and sealingly engages with the sealing end of the seal conduit such that the sealing end is held between the exterior sealing surface of the seal fitting and the lock ring.