The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a sealed insert, designed for harsh environments. With a wide operating temperature range of -65°C to 200°C, these connectors are reliable in extreme conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatile installation solutions. Available in nine shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Made from aluminum with plating options including gold and electroless nickel, these connectors ensure durability and conductivity. Meeting MIL-DTL-38999 II military specifications, they are ideal for demanding applications requiring rugged and reliable electrical connections.