MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an insert. Designed for harsh environments, they feature front and rear wall mount options, as well as jam nut receptacles with RFI grounding plugs. These circular connectors meet military specification MIL-DTL-38999 I, ensuring reliable operation in extreme conditions. With a wide range of shell sizes and insert arrangements, they accommodate various contact types, including M39029 rear release crimp contacts. Constructed with durable aluminum shells and available in different plating options, these connectors provide excellent conductivity and protection. From light iridescent yellow cadmium to black anodized aluminum finishes, they offer versatile solutions for critical applications. RoHS compliant options are also available, making them suitable for environmentally conscious projects. The MIL-DTL-38999 I connectors are ideal for demanding military, aerospace, and industrial settings, where rugged performance is essential.