The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts housed in an environmentally sealed insert. With a wide operating temperature range from -65°C to 200°C, these connectors are ideal for rugged applications. Available in various configurations including front and rear wall mount as well as jam nut receptacles, they offer versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offering multiple plating options such as gold, electroless nickel, and anodized aluminum, these connectors provide durability and reliability. RoHS compliant finishes are also available, catering to environmental regulations. Suitable for military and industrial use, the MIL-DTL-38999 Series I connectors guarantee high performance in demanding conditions.