The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles, they offer versatile installation options. These connectors, compliant with military specification MIL-DTL-38999 II, ensure reliable performance in extreme conditions, with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Crafted from aluminum with plating options like electroless nickel and cadmium finishes, they guarantee durability. Suitable for applications requiring environmental resistance, these connectors are essential for demanding military and industrial settings.