The MIL-DTL-38999 Series II 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 ensure reliable performance in extreme conditions. Available in various mounting styles, including front wall mount, rear wall mount, and jam nut receptacles, they offer versatility for different applications. Constructed with aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, these connectors provide durability and corrosion resistance. Compliant with military specification MIL-DTL-38999 II, they meet stringent quality and performance standards for aerospace and defense applications. With features like removable crimp contacts and bayonet coupling, these connectors offer ease of installation and secure mating. Suitable for box mounting and through bulkhead applications, they are ideal for use in aircraft, military vehicles, and other demanding environments.