The MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a sealed insert. Operating efficiently in temperatures ranging from -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mounts, jam nuts, and box mounts. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Featuring M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Crafted with aluminum shells and available in multiple plating finishes, such as cadmium and nickel, these connectors prioritize durability and performance. Suitable for military and industrial applications, they guarantee reliability with a mating life of 500 cycles and conductivity assurance. RoHS compliant options are also available, making them ideal for environmentally conscious projects.