MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -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 options for different plating finishes, including RoHS-certified cadmium-free coatings. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, ensuring versatility in applications. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure and efficient connections. Suitable for military and industrial use, they provide conductivity and ingress protection for demanding environments.