The 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 mounting options, including front and rear wall mount and jam nut receptacles, these connectors offer reliable connectivity. Compliant with military specifications, they come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. With high-strength aluminum shells and a choice of plating options such as electroless nickel and cadmium finishes, these connectors ensure durability. Ideal for applications requiring RoHS compliance, they guarantee reliable performance in demanding conditions.