MIL-DTL-38999 Series II connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts housed in environmentally sealed inserts. Designed for durability, these connectors maintain reliable operation in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles, they cater to diverse installation needs. With options for straight, RFI grounding, and standard plugs, each connector is equipped with a 90-degree cable clamp for secure attachment. Compliant with military specification MIL-DTL-38999 II, these circular plugs ensure high performance in demanding applications. Crafted from aluminum with multiple plating choices such as gold, electroless nickel, and RoHS-certified cadmium-free finishes, they guarantee optimal conductivity and corrosion resistance. The use of M39029 rear release crimp contacts in various sizes further enhances their versatility, making them ideal for aerospace, defense, and industrial settings where ruggedness and reliability are paramount.