MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating range from -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. Constructed with high-strength aluminum shells, they come in a range of plating options including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance with gold-plated contact surfaces. Meeting military specification MIL-DTL-38999 I, they provide environmental resistance and durability, making them ideal for demanding applications in aerospace, defense, and other industries.