MIL-DTL-38999 Series II connectors are rugged and reliable, featuring up to 128 contacts within an environmentally sealed insert. Designed for harsh environments, they offer a wide operating temperature range from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure secure connections in demanding applications. Made of aluminum with options for different plating finishes, they provide excellent durability. Utilizing M39029 rear release crimp contacts, they guarantee efficient and convenient installation. With a mating type of bayonet coupling and a service rating of I, these connectors are ideal for military and industrial use.