The MIL-DTL-38999 Series II connectors offer robust connectivity solutions for demanding environments, featuring up to 128 contacts housed in a sealed insert. With an extensive operating temperature range from -65°C to 200°C, these connectors ensure reliable performance in extreme conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Compliant with military specification MIL-DTL-38999, these circular plugs boast durable construction with aluminum shells and offer multiple plating options for corrosion resistance. Equipped with M39029 rear release crimp contacts, they guarantee secure and efficient connections. The Series II connectors, with their EMI/RFI shielding capabilities, are suitable for use in a wide range of industries, from aerospace and defense to industrial and telecommunications.