MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles, including front wall mount, rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The aluminum shells come in multiple plating options, including gold, electroless nickel, and cadmium-free finishes, ensuring durability and corrosion resistance. With M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, these connectors offer secure and efficient connectivity. Meeting MIL-DTL-38999 II specifications, they are ideal for military and aerospace applications requiring rugged and high-performance connectors.