MIL-DTL-38999 Series II connectors are designed for demanding environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles including jam nut, wall mount, and box mount receptacles, they provide versatility for different applications. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections. Constructed with aluminum shells and offering multiple plating options, they meet stringent military specifications. With features like bayonet coupling, gold contact plating, and RoHS compliant finishes, these connectors are ideal for aerospace, defense, and industrial applications requiring rugged and durable connectivity solutions.