The MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts sealed for environmental protection. With an operating temperature range of -65°C to 200°C, these connectors are built for durability. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts, ensuring secure connections. The high-strength aluminum shells come with a choice of plating options, including cadmium-free finishes for RoHS compliance. Whether for front or rear wall mount or jam nut receptacles, these connectors meet stringent military specifications for performance and reliability. Ideal for applications requiring ruggedized solutions, they provide conductivity and ingress protection for demanding environments.