MIL-DTL-38999 Series II connectors are built for rugged environments, offering exceptional durability and performance. With up to 128 contacts in each insert, these connectors provide versatility for a wide range of applications. Featuring environmental sealing, they can withstand extreme conditions, with an operating temperature range from -65 °C to 200 °C. The connectors come in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with different plating options, such as electroless nickel and cadmium-free finishes, they meet stringent military specifications for reliability. Designed for easy installation and maintenance, they use M39029 rear release crimp contacts in multiple sizes. Whether for military, aerospace, or industrial use, MIL-DTL-38999 Series II connectors ensure secure and efficient electrical connections in demanding environments.