The MIL-DTL-38999 Series II connectors offer robust performance in harsh environments, with up to 128 contacts housed in a sealed insert. Designed for durability, they can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors are versatile for different applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Crafted from aluminum with plating options including cadmium and nickel, they meet stringent military specifications. RoHS compliant versions are also available, ensuring environmental responsibility. Perfect for demanding scenarios, these connectors guarantee reliable connectivity with their gold-plated contacts and conductive design, making them ideal for aerospace, defense, and industrial use.