MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts inside a rugged insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Featuring aluminum shells with options for plating, including cadmium-free finishes, these connectors ensure durability and reliability. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, they guarantee secure connections. With a mating type of bayonet and service rating of M, they are suitable for demanding applications. The Series II connectors, compliant with MIL-DTL-38999 specifications, are ideal for military, aerospace, and industrial use, offering robust performance in challenging conditions.