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 YACT24MB99JCV00100
The D38999/24MB99JC is a MIL-DTL-38999 III (D38999) jam nut receptacle, designed for use in harsh environments. With a rugged construction and triple start threaded mating type, this connector ensures secure and reliable connections in demanding applications. Featuring 7 female socket contacts with gold plating, it offers excellent conductivity and corrosion resistance. The composite shell with electroless nickel finish provides added durability, while meeting environment-resistant ingress protection standards. Rated for operating temperatures ranging from -65 to 200°C (-85 to 392°F) and voltages up to 600 V AC, 850 V DC, and 1800 Vrms, this connector is suitable for military, aerospace, and other high-reliability applications. With a service rating of I (infrequent), it guarantees performance and longevity in critical systems.