MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in front wall mount, rear wall mount, and jam nut receptacles, they offer RFI grounding and utilize M39029 rear release crimp contacts in various sizes. With high strength aluminum shells and multiple plating options including cadmium-free finishes, these connectors ensure reliable performance in demanding applications. Meeting military specification MIL-DTL-38999 I, they are ideal for use in aerospace, defense, and other rugged environments.