The MIL-DTL-38999 Series II connectors are robustly designed for harsh environments, featuring up to 128 contacts housed in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various mounting configurations including front and rear wall mount, as well as jam nut and box mount receptacles, they provide flexibility for different applications. The connectors, crafted from aluminum shells, come with a range of plating options such as electroless nickel and cadmium finishes, ensuring durability and corrosion resistance. Compliant with military specification MIL-DTL-38999 II, these circular receptacles with crimp-type contacts are ideal for aerospace, defense, and industrial use.