UG491A/U

BNC Female Panel Receptacle, standard 4-hole square flange front bulkhead component manufactured by Amphenol / Kings. Designed with a robust pressurized internal contact seal to withstand long-term field moisture and vibration. Deployed across aircraft bulkhead plates, military radio enclosures, and marine radar dashboards. Industry exact equivalents and cross-manufacturers include Amphenol 31-221, Kings 1708-1, Delta 1109-000-N000, and Trompeter panel-jacks.