The MIL-DTL-38999 Series I connectors boast up to 128 contacts within their environmentally sealed inserts, designed for rugged performance in harsh environments. With an impressive operating temperature range from -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they cater to various installation needs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8 for versatile connectivity options. Crafted from high-strength aluminum, these connectors come with a range of plating choices, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial applications, the MIL-DTL-38999 Series I connectors ensure secure and efficient electrical connections in demanding settings.