MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally-sealed insert. With a wide operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors include front and rear wall mount options, as well as jam nut receptacles. Utilizing M39029 rear release crimp contacts, they ensure secure connections in aerospace and military applications. The high strength aluminum shells come with multiple plating options, including RoHS certified finishes, catering to diverse needs. The bayonet coupling design and gold-plated contacts ensure durability and conductivity, making them ideal for critical missions.