MIL-DTL-38999 Series II connectors feature up to 128 contacts, offering reliable connectivity in harsh environments. With an operating temperature range of -65 °C to 200 °C, these environmentally sealed connectors are designed for durability. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors, crafted from aluminum, come in 9 shell sizes with 52 insert arrangements, accommodating different configurations. Utilizing gold-plated M39029 crimp contacts, they ensure secure connections, while the electroless nickel finish provides corrosion resistance. Meeting military specification MIL-DTL-38999 II, these circular receptacles are ideal for applications requiring rugged performance.