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 YACT24MH55BBV00100
The D38999 Series III Jam Nut Receptacle is a high-performance connector designed for harsh environments, meeting MIL-DTL-38999 III military specifications. With 55 contacts arranged in a Triple Start Threaded mating type, it offers reliable connectivity in demanding applications. Featuring a composite shell with Electroless Nickel plating, this connector ensures durability and conductivity in extreme conditions. Rated for 7.5 A, 600 V AC, and operating temperatures ranging from -65 to 200 °C, it is suitable for a wide range of military and aerospace systems. The YACT24MH55BBV00100, also known as part number D38999/24MH55BB, is a RoHS non-compliant, high reliability connector that guarantees performance in mission-critical operations.