The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, these connectors are versatile for different applications. Constructed with aluminum shells and offering multiple plating options including gold, electroless nickel, and cadmium-free finishes, they ensure durability and conductivity. The use of M39029 rear release crimp contacts in various sizes guarantees secure connections. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for demanding industrial and aerospace environments.