MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for rugged performance in harsh environments. With an operating temperature range from -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for reliable connectivity. Constructed with aluminum shells and offered in different plating options, such as gold and electroless nickel, they ensure durability and corrosion resistance. Ideal for military and aerospace applications, these connectors meet stringent MIL-DTL-38999 II specifications, providing a secure and efficient solution for your electrical connection needs.