MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts enclosed in a durable insert. These connectors are meticulously engineered for reliable performance, withstanding extreme temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility in applications. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Constructed with high-strength aluminum shells, they come in plating options such as yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and efficient connections. Meeting MIL-DTL-38999 I military specifications, they guarantee quality and performance in demanding environments.