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. Constructed with high strength aluminum shells, these connectors come with a choice of plating options, including cadmium-free finishes, and utilize M39029 rear release crimp contacts for reliable connections. Meeting military specification MIL-DTL-38999 I, they are ideal for applications requiring durability and performance in demanding conditions.