MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts sealed for environmental protection. With a wide operating temperature range from -65 °C to 200 °C, these connectors are reliable 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 installation needs. Featuring straight, RFI grounding, and standard plugs with a 90-degree cable clamp, they ensure secure connections. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements. Their aluminum shells are offered with plating options including cadmium and nickel, meeting different industry requirements. With RoHS compliant finishes available, these connectors guarantee high performance and durability in military and industrial applications.