MIL-DTL-38999 Series II connectors boast up to 128 contacts in an environmentally sealed insert, designed for rugged applications with an operating temperature range of -65°C to 200°C. These connectors, part of the military-specification MIL-DTL-38999 II, come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. Featuring aluminum shells with plating options such as cadmium and nickel, these connectors ensure durability and performance in harsh environments. Whether for military, aerospace, or industrial use, these connectors provide secure and efficient electrical connections.