MIL-DTL-38999 Series I connectors, designed for rugged environments, feature up to 128 contacts in an insert and offer reliable performance in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they provide versatility for different applications. These connectors utilize M39029 rear release crimp contacts and come in 9 shell sizes with 52 insert arrangements. Constructed with high-strength aluminum shells, they are offered in plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. RoHS compliant finishes are also available. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors ensure secure and durable electrical connections in harsh conditions.