MIL-DTL-38999 Series II connectors boast up to 128 contacts within a sealed insert, designed for harsh environments with an operating range of -65 °C to 200 °C. Featuring various mounting options like front and rear wall, jam nut, and box mounts, these connectors are versatile in application. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed from aluminum, they offer plating options including cadmium and nickel, with RoHS compliant finishes. Ideal for military and industrial use, these connectors ensure reliable electrical connectivity in demanding conditions.