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 YACT24JJ24SNV00100
The D38999/24JJ24SN is a MIL-DTL-38999 III (D38999) jam nut receptacle, part of the DEUTSCH 38999 Series III Composite Connectors. With 24 gold-plated socket contacts, it offers high conductivity and a current rating of 23 A. Operating in extreme temperatures from -65 to 175 °C, this connector is suitable for harsh environments. Its triple start threaded mating type ensures secure connections, while its olive drab cadmium shell plating provides excellent environmental resistance. With a voltage rating of 600 V AC, 850 V DC, and 1800 Vrms, it is reliable for power and signal applications. RoHS-compliant and hi-rel certified, the D38999/24JJ24SN is a trusted solution for military, aerospace, and industrial systems.