The MIL-DTL-38999 III (D38999) harsh environment connectors feature wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs, offering versatility in tough conditions. Available in 9 shell sizes and 54 insert arrangements, they utilize M39029 contacts in various sizes, including power and twinax options. With shell materials like aluminum, stainless steel, and lightweight composite, and plating choices such as olive drab cadmium and nickel, these connectors meet diverse needs. RoHS-compliant and Boeing BACC-approved designs are also part of the selection, ensuring quality and compliance. Perfect for military and industrial applications, these connectors guarantee reliable performance even in extreme environments.