MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These environmentally sealed connectors have 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, they offer flexibility for different applications. With 52 insert arrangements and M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, these connectors provide versatile connectivity solutions. Constructed with aluminum shells and offered in different plating options such as electroless nickel and cadmium-free finishes, they ensure durability and reliability. Ideal for military and industrial use, these connectors meet MIL-DTL-38999 II specifications, guaranteeing high performance in demanding conditions.