MIL-DTL-38999 Series II connectors boast up to 128 contacts in an insert, offering robust environmental sealing and a wide operating temperature range from -65 °C to 200 °C. These rugged connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles, catering to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, they feature M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, ensuring reliable connections. Crafted from aluminum with plating options like electroless nickel and cadmium finishes, they deliver durability and performance in harsh environments. With RoHS compliant options, these connectors are ideal for military and industrial applications requiring high reliability and environmental resistance.