MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting options including front wall, rear wall, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in aluminum shells with plating options such as cadmium and nickel, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they provide secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for applications requiring rugged and high-performance connectivity.