The 449619-3 is a bulkhead receptacle connector designed for high-voltage applications in aerospace, defense, and marine environments. It is rated for 20 kVDC operation and features a 1/2-20 UNF-2A threaded interface for secure panel mounting. The receptacle has a barrel depth of 0.88 inches (22.35 mm) and is constructed with glass-epoxy material for electrical insulation and durability. This connector is compatible with RFI shielded lead assemblies and is commonly used in C4ISR systems, commercial aerospace, military aerospace, and missile defense applications where reliable high-voltage signal transmission is critical.