MIL-DTL-38999 Series II connectors feature up to 128 contacts within an environmentally sealed insert. Designed for harsh environments, they offer a wide operating temperature range from -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure secure and reliable connections. With 52 insert arrangements and M39029 rear release crimp contacts, they provide versatility for different applications. Constructed with aluminum shells and offering multiple plating options, such as cadmium and nickel, they meet rigorous military specifications. Their rugged design, RoHS compliant finishes, and high mating cycle durability make them ideal for use in demanding environments where reliability is paramount.