MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range from -65 °C to 200 °C, they ensure reliable connectivity in extreme conditions. Available in various mounting options, including front wall, rear wall, and jam nut receptacles, these connectors meet military specification standards for durability. Utilizing M39029 rear release crimp contacts, they come in 9 shell sizes and 52 insert arrangements. Constructed with high-strength aluminum shells and offered in multiple plating options, such as gold and electroless nickel, they provide excellent conductivity and corrosion resistance. RoHS compliant finishes are also available. Perfect for demanding applications, these connectors guarantee 500 mating cycles and reliable performance in challenging environments.