MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available as front and rear wall mount, as well as jam nut receptacles, they offer RFI grounding plugs. With 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, they come in multiple plating options like cadmium and nickel. RoHS certified finishes are also available. Suitable for military and industrial applications, these connectors provide reliable performance in demanding conditions.