MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With a wide 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 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, these connectors ensure secure and durable connections. Ideal for military and aerospace applications, they meet MIL-DTL-38999 I specifications for performance and durability.