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 shell sizes and insert arrangements, they offer versatility for different applications, including front wall mount, rear wall mount, and jam nut receptacles. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable connectivity, with plating options such as cadmium-free finishes for RoHS compliance. Constructed with high strength aluminum shells, they provide durability and longevity in demanding conditions. Suitable for military and industrial use, these connectors meet stringent performance standards for conductivity and environmental resistance.