MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance in demanding applications. Constructed with high strength aluminum shells and offered in multiple plating options, including RoHS certified finishes, they meet stringent military specifications for durability and reliability. Perfect for applications requiring secure electrical connections in challenging environments, these connectors are ideal for defense, aerospace, and industrial use.