MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high strength aluminum shells with multiple plating options, including cadmium-free finishes. The connector family includes front and rear wall mount, jam nut receptacles, and RFI grounding plugs, suitable for a range of applications. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Meeting military specifications, these connectors are ideal for demanding environments where durability and performance are essential.