MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With robust construction, they offer reliable performance in extreme conditions, with an operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in front wall mount, rear wall mount, and jam nut receptacle options. Utilizing M39029 rear release crimp contacts, they ensure secure connections. The connectors are environmentally sealed and come in high-strength aluminum shells with plating options including cadmium and electroless nickel. With RoHS compliant finishes, they meet the latest environmental standards, making them ideal for military and industrial applications.