MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering reliable performance in temperatures ranging from -65 °C to 200 °C. These environmentally sealed connectors come in various configurations, including front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and available in different plating options, including cadmium-free finishes, they meet stringent military specifications for durability and performance. Perfect for applications requiring rugged and reliable electrical connections, MIL-DTL-38999 Series II connectors are the ideal choice for demanding environments.