MIL-DTL-38999 Series II connectors, designed for harsh environments, offer up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connectivity. Constructed with aluminum shells and offering plating options such as cadmium and nickel, they ensure durability and performance. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for demanding environments requiring rugged and reliable interconnect solutions.