MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. These connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with options for plating finishes such as cadmium and nickel. With gold-plated, removable crimp contacts in sizes 16(8) and 20(48), they ensure reliable connectivity. The bayonet coupling mechanism and N keyway polarization enhance ease of use and security. Suitable for demanding environments, these connectors are ideal for applications requiring rugged, high-performance connectivity.