The MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are designed for durability. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they meet stringent military specifications. The connectors come in 9 shell sizes and 52 insert arrangements, utilizing reliable M39029 rear release crimp contacts. Constructed with high strength aluminum shells, they are offered in a range of plating options for corrosion resistance. RoHS compliant finishes are also available. Perfect for applications requiring rugged and reliable connectivity, these connectors ensure optimal performance in demanding environments.