MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, they provide reliable performance in extreme conditions. Available in various mount types, including front and rear wall mount, jam nut, and box mount receptacles, these connectors feature thin walls and restricted lengths. The plugs come in straight, RFI grounding, and standard options with a 90-degree cable clamp. Compliant with military specification MIL-DTL-38999 II, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating options such as electroless nickel and cadmium finishes, they ensure durability and conductivity. Perfect for applications requiring environmental resistance, these connectors are ideal for use in defense, aerospace, and industrial settings.