MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts sealed within their inserts. With an operating temperature range of -65 °C to 200 °C, these connectors offer robust performance. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. The connectors come in aluminum shells with options for plating, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. Compliant with military specification MIL-DTL-38999 II, these circular plugs are ideal for demanding environments, offering durability and high performance.