MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operational range of -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting options, including front and rear wall mount, as well as jam nut receptacles, they provide flexibility for different applications. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. The high-strength aluminum shells come in multiple plating options, such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS compliant finishes available. Perfect for military and industrial use, these connectors meet MIL-DTL-38999 I specifications, offering durability and performance in demanding environments.