The MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts in a sealed insert. With an impressive operating temperature range of -65°C to 200°C, these connectors are designed for reliability in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax options. The high-strength aluminum shells come in a range of plating options, from cadmium finishes to RoHS-certified alternatives, ensuring durability and compliance. Whether for front wall mount, rear wall mount, or jam nut receptacles, the MIL-DTL-38999 I connectors meet stringent military specifications for performance and reliability in critical applications.