The 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 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 wall mount configurations with options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Constructed with high-strength aluminum shells and offered in different plating options, including cadmium-free finishes, these connectors meet stringent military specifications for durability and performance. Suitable for applications requiring rugged and reliable electrical connectivity, the MIL-DTL-38999 Series I connectors are ideal for use in demanding environments.