The 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. Available in various mounting options including front wall mount, rear wall mount, and jam nut receptacles, they offer versatility for different applications. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with high-strength aluminum shells and offered in multiple plating options, including RoHS certified finishes, they meet stringent military specifications. With a focus on durability and performance, these connectors are suitable for demanding industrial and aerospace environments.