MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range from -65 °C to 200 °C, they offer reliable performance in demanding conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, these connectors meet stringent military specifications. The aluminum shells come in different plating options, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. RoHS compliant finishes are also available, making them suitable for a range of applications.