MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offering plating options such as electroless nickel and cadmium finishes, these connectors provide reliable performance. Suitable for military applications, they meet MIL-DTL-38999 I specifications and are ideal for demanding environments where durability and conductivity are crucial.