MIL-DTL-38999 Series II connectors offer a reliable solution for harsh environments with up to 128 contacts sealed within the insert. Designed for durability, they maintain peak performance in temperatures ranging from -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure secure connections in diverse applications. Featuring straight, RFI grounding, and standard plugs with a 90-degree cable clamp, they accommodate different installation requirements. With 9 shell sizes and 52 insert arrangements utilizing M39029 rear release crimp contacts, these connectors provide flexibility for custom configurations. Constructed with aluminum shells and offering multiple plating options such as electroless nickel and cadmium finishes, they guarantee both strength and corrosion resistance. Compliant with military specifications, these connectors are ideal for demanding military, aerospace, and industrial environments.