MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Offering front and rear wall mount options, as well as jam nut receptacles, this connector family meets military specifications for rugged performance. With various plating options including gold, electroless nickel, and cadmium finishes, they ensure reliable conductivity. The high strength aluminum shells, available in nine sizes, provide durability. Utilizing M39029 rear release crimp contacts, these connectors are suitable for applications requiring secure and durable electrical connections.