The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Made of high-strength aluminum, they come with plating options including gold, electroless nickel, and cadmium-free finishes, ensuring durability and corrosion resistance. Ideal for military and industrial applications, these circular connectors meet stringent MIL-DTL-38999 I specifications.