MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an impressive operating temperature range of -65°C to 200°C, they offer reliability in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse applications. The connectors come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating options like cadmium and nickel, they ensure durability and performance. These connectors, compliant with military specification MIL-DTL-38999 II, are ideal for demanding industrial and defense applications.