MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert and offering reliable performance in temperatures ranging from -65°C to 200°C. These connectors, compliant with military specifications, come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections in critical applications. Available in aluminum shells with plating options such as cadmium and nickel, they offer durability and corrosion resistance. RoHS compliant finishes are also available, making them suitable for environmentally conscious projects. Ideal for military, aerospace, and industrial use, these connectors guarantee high performance and longevity, with a contact mating life of 500 cycles.