The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for rugged performance in harsh conditions. With an operating temperature range spanning from -65 °C to 200 °C, they offer reliable connectivity in extreme environments. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with multiple plating options, including RoHS-certified finishes. The connector family includes front and rear wall mount receptacles, as well as jam nut receptacles, all featuring RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Suitable for military and industrial applications, these connectors are built to withstand demanding service environments.