MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an 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 accommodate M39029 rear release crimp contacts. The high-strength aluminum shells come with a choice of plating options, including cadmium-free finishes. This connector family includes wall mount and jam nut receptacles, with RFI grounding plugs. Suitable for military and industrial applications, these connectors ensure secure and durable electrical connections.