Raychem Heat-Shrinkable Cable-Entry Seals (CESs) offer a reliable solution for sealing cable entries in connection boxes, bulkheads, or enclosures. Available in standard and threaded types, these seals feature a three-part assembly including a rigid plastic nut, an O-ring, and a heat-shrinkable molded area. The factory-applied adhesive ensures a robust seal to wire and cable jackets, meeting U.S. Coast Guard HQ 3774 standards for wet, dry, and corrosive environments. For armored cables, additional sealant may be required to ensure a complete seal.