MIL-DTL-38999 Series I connectors feature up to 128 contacts within their environmentally sealed inserts, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts in multiple sizes, they ensure secure connections. Constructed with high strength aluminum shells and offering plating options like electroless nickel and cadmium finishes, including RoHS certified options, these connectors meet stringent military specifications for reliability. Perfect for back panel box mounting applications, they provide a durable and conductive solution, with a female contact gender and socket contact style. Suitable for environments requiring resistance to extreme conditions, these connectors are essential for aerospace, defense, and industrial applications.