MIL-DTL-38999 III (D38999) harsh environment connectors consist of wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. They are offered in 9 shell sizes and 54 insert arrangements, utilizing M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax. 38999 Series 3 connectors are offered in a variety of shell materials, including aluminum, stainless steel, and lightweight composite. They are also available in a wide assortment of plating options, including olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel. Selection includes RoHS-compliant, cadmium-free finishes, as well as Boeing BACC-approved designs.
Part Aliases: TE Connectivity | Deutsch YACT24MJ43HBV00100
The D38999 Series III Jam Nut Receptacle is a high-performance connector designed for harsh environments, meeting MIL-DTL-38999 III military specifications. With a durable composite shell and Electroless Nickel shell plating, this connector offers excellent resistance to extreme temperatures ranging from -65 to 200 °C (-85 to 392 °F). Featuring 43 gold-plated contacts in a triple-start threaded mating configuration, it ensures reliable and secure connections in demanding applications. With a voltage rating of 600 V AC, 850 V DC, and 1800 Vrms, this connector is suitable for power and signal transmission. Its rugged construction and 1500-cycle pin contact mating life make it ideal for mission-critical operations in aerospace, defense, and other high-reliability industries.