MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they come with M39029 rear release crimp contacts and offer options for RoHS compliant finishes. The high strength aluminum shells, along with plating choices including cadmium and nickel, ensure durability and reliable performance. This connector family includes front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, catering to diverse connectivity needs in military and industrial settings.