MIL-DTL-38999 Series I connectors are designed for rugged environments, offering up to 128 contacts in a single insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh conditions. Available in various shell sizes and insert arrangements, they feature front and rear wall mount options, along with jam nut receptacles for secure installations. The connectors use M39029 rear release crimp contacts for reliable connections. Constructed with high strength aluminum shells, they come in different plating options such as cadmium and nickel for corrosion resistance. Meeting military specifications, these connectors ensure durability and performance, making them suitable for a range of applications.