MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various mounting configurations such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, ensuring secure connections. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, they meet stringent military specifications. Perfect for use in aerospace, defense, and industrial applications, these connectors guarantee durability and high performance.