MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts. The high-strength aluminum shells come with multiple plating options, including cadmium-free finishes, ensuring durability and corrosion resistance. Offering front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, this connector family meets stringent military specifications for performance and reliability.