The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed 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. Constructed with high-strength aluminum shells and offering a range of plating options including electroless nickel, these connectors ensure reliable performance. The military specification compliant connectors are ideal for applications requiring durability and resistance to environmental factors.