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 offer reliable performance in extreme conditions. Available in various configurations including front wall mount, rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Constructed with aluminum shells and offering a choice of plating options such as cadmium and nickel, these connectors ensure durability and corrosion resistance. Compliant with military specification MIL-DTL-38999 II, they guarantee high-quality standards for mission-critical applications. Suitable for use in aerospace, defense, and industrial sectors, these connectors with gold-plated contacts provide reliable electrical connections. The removable crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, along with various insert arrangements, offer flexibility in design and connectivity. With a mating type of bayonet and a service rating of I, these connectors are ideal for demanding environments. Trusted for their performance and quality, the MIL-DTL-38999 Series II connectors are essential components in ensuring secure and efficient electrical connections.