MIL-DTL-38999 Series II connectors are designed for rugged environments, with up to 128 contacts housed in a secure insert. These connectors offer reliable performance in extreme conditions, with an operating temperature range from -65°C to 200°C. Featuring various mounting options such as front wall, rear wall, jam nut, and box mount receptacles, they suit diverse installation needs. Available in aluminum shells with plating options including cadmium and nickel, these connectors ensure durability and corrosion resistance. The 37-contact configuration, utilizing gold-plated removable crimp contacts, offers high conductivity and mating reliability. With a bayonet coupling design and RoHS-compliant finishes, they meet stringent military specifications for performance and environmental safety. Perfect for applications requiring secure electrical connections in harsh environments.