MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. With a wide operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Crafted from aluminum, they come with plating options such as cadmium and nickel, ensuring durability. Compliant with military standards, these connectors guarantee reliable performance in rugged conditions.