MIL-DTL-38999 Series II connectors, designed for harsh environments, boast up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors offer reliability in extreme conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Crafted from aluminum, with plating options including cadmium and nickel, these connectors ensure durability and performance. Meeting stringent military specifications, they are ideal for applications requiring rugged and reliable connectivity.