MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with different plating options, including cadmium-free finishes. The family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, ensuring versatility in application. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connectivity. Perfect for military and industrial use, these connectors meet MIL-DTL-38999 I specifications, providing durability and longevity in demanding environments.