MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 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 plating such as cadmium and nickel. The connector family includes receptacles for front and rear wall mount, jam nut, and RFI grounding plugs, all meeting military specification MIL-DTL-38999 I. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and efficient connections. With RoHS-certified finishes, they provide a durable and environmentally friendly solution for electrical connectivity in demanding applications.