MS3476W14-4P is a DEUTSCH AFD Series miniature circular connector designed for harsh aerospace, defense, and marine environments. It features bayonet quick-connect coupling with rear release contacts and environmental sealing to withstand demanding operational conditions. The connector is qualified to MIL-DTL-26482 Series II and supports recommended operating voltages of 1000 VACRMS/1275 VDC at sea level (Service Rating II), with test voltages of 2300 VRMS at sea level. The shell is constructed from aluminum alloy with nickel, black anodic, or olive drab cadmium plating, while contacts are copper alloy with selective 50 µin gold plating. This connector is intermateable with MIL-DTL-26482 Series I connectors and is commonly used in commercial aerospace, military aerospace, and military ground vehicle applications where reliable electrical connections and environmental protection are critical.