The MIL-DTL-38999 Series II connectors are rugged and versatile, with up to 128 contacts housed in an insert for secure connectivity. Designed for harsh environments, they are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer flexibility for different applications. Featuring M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, these connectors ensure reliable connections. Constructed with aluminum shells and offering a choice of plating options, including cadmium-free finishes, they meet stringent military specifications for durability and performance. With a proven mating life of 500 cycles, these connectors are ideal for demanding environments where reliable electrical connections are essential.