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 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 and offered in multiple plating options, including RoHS certified finishes, these connectors ensure reliable performance in demanding applications. Suitable for military and industrial use, they meet stringent MIL-DTL-38999 I specifications for durability and environmental resistance.