MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert that is environmentally sealed for reliable performance. Operating between -65°C and 200°C, these connectors offer durability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come with plating options such as electroless nickel and cadmium finishes, including RoHS certified cadmium-free options. With receptacles for front and rear wall mount as well as jam nut configurations, these connectors provide versatility for different mounting needs. Ideal for military applications, they meet stringent MIL-DTL-38999 I standards, offering a dependable solution for electrical connectivity in demanding environments.