The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for rugged use in harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they cater to diverse installation needs. Constructed with high-strength aluminum shells and plated in options like electroless nickel, these connectors ensure durability and corrosion resistance. Perfect for military and industrial applications, they meet stringent MIL-DTL-38999 I specifications for quality and performance.