The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed within an insert. Operating between -65 °C and 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mount types, including front and rear wall mount, and jam nut receptacles, they ensure versatility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, they provide flexibility for different applications. Constructed with high-strength aluminum shells and offering multiple plating options, such as gold, electroless nickel, and cadmium finishes, these connectors guarantee durability and corrosion resistance. Suitable for military and industrial use, they meet stringent standards for reliability.