MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for robust performance in harsh environments. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high strength aluminum shells and offered in different plating options, including RoHS certified finishes, they ensure durability and compliance. The connector family includes front and rear wall mount, as well as jam nut receptacles, with RFI grounding plugs for enhanced functionality. Suitable for military and industrial applications, these connectors are ideal for demanding environments where reliable electrical connections are essential.