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, these connectors offer reliable performance in extreme conditions. Available in various configurations, including front and rear wall mount receptacles and jam nut receptacles, they meet military specification MIL-DTL-38999 I. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high strength aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, these connectors provide durability and corrosion resistance. Perfect for applications requiring high reliability, they are suitable for use in demanding environments where connectivity is critical.