MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, they offer reliability in extreme conditions. 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 wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, accommodating diverse installation needs. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Ideal for military and industrial applications, these connectors are known for their durability and performance.