MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed within the insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts. The high-strength aluminum shells come with options for plating, including cadmium and nickel finishes. These connectors, compliant with military specifications, are ideal for applications requiring rugged and durable electrical connections.