MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within an environmentally sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The connectors, compliant with MIL-DTL-38999 I specifications, include front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, catering to diverse installation needs. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Suitable for military and industrial applications, these connectors provide durable performance in demanding environments.