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, they offer versatile installation options. These connectors, compliant with military specification MIL-DTL-38999 I, ensure reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Constructed with high-strength aluminum shells and available in various plating options, including gold, electroless nickel, and cadmium-free finishes, they guarantee durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, these connectors provide secure and efficient connections. Suitable for applications requiring rugged and environmentally sealed connectivity, the MIL-DTL-38999 I series is ideal for aerospace, defense, and industrial uses.