MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a sealed insert, designed for harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors are reliable in extreme conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they ensure versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options including electroless nickel and cadmium finishes, they meet stringent military specifications. The MS27472 connectors, known for their durability and performance, are ideal for applications requiring rugged and reliable electrical connections in demanding environments.