The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert with front wall mount, rear wall mount, and jam nut receptacles. These connectors are environmentally sealed and can operate in temperatures ranging from -65°C to 200°C. With various plating options such as cadmium, nickel, and anodized aluminum, they offer durability and reliability. Utilizing M39029 rear release crimp contacts, they ensure secure connectivity. Available in different shell sizes and insert arrangements, including sizes 22D, 22M, 22, 20, 16, and 8, these connectors cater to diverse applications. Their high-strength aluminum shells and gold-plated contacts guarantee optimal performance, making them ideal for military and industrial use.