The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Constructed with high-strength aluminum shells, they come in plating options such as cadmium and nickel, meeting RoHS certification standards. These connectors use M39029 rear release crimp contacts in different sizes, ensuring reliable connectivity. Ideal for military applications, they provide durable and conductive solutions for demanding environments.