MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, this connector family includes 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts in various sizes, they ensure reliable connections. Constructed with high strength aluminum shells and available in different plating options such as electroless nickel, these connectors meet stringent military specifications for durability and performance. With RoHS certified cadmium-free finishes, they are ideal for applications requiring rugged and reliable electrical connections.