MIL-DTL-38999 III (D38999) harsh environment connectors feature wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. Available in 9 shell sizes and 54 insert arrangements with M39029 contacts in various sizes, including 22D, 20, 16, 12, 10 power, and 8 twinax. Constructed from aluminum, stainless steel, or lightweight composite, with plating options like olive drab cadmium, nickel, and black zinc nickel. RoHS-compliant and Boeing BACC-approved designs ensure quality and reliability in military and aerospace applications. The 38999 Series 3 connectors, such as the MIL-DTL-38999/20, specifically, are circular, wall mountable receptacles with 55 removable crimp contacts, meeting stringent performance standards with a service rating of M and operating temperatures ranging from -65°C to 175°C.
