MIL-DTL-38999 Series II connectors boast up to 128 contacts enclosed in a durable insert, ensuring reliable performance in harsh environments. Designed for military specifications, these circular receptacles feature various mounting options such as front and rear wall mount, jam nut, and box mount configurations. With operating temperatures ranging from -65 °C to 200 °C, they offer versatility in demanding applications. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Crafted from aluminum with plating options including electroless nickel and cadmium finishes, they meet stringent quality standards. The Bayonet mating system and removable crimp contacts make installation and maintenance hassle-free. Suitable for potting applications, these connectors ensure optimal conductivity and longevity in critical operations.