MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments, housing up to 128 contacts within a sealed insert. Designed for durability, these connectors operate effectively in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Featuring 52 insert arrangements and utilizing M39029 rear release crimp contacts, these connectors ensure secure connections. Crafted from aluminum with options for plating including cadmium and nickel finishes, they guarantee longevity and performance. RoHS compliant alternatives are also available, making them ideal for a range of applications requiring rugged and reliable connectivity.