MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and can withstand operating temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. The high strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide reliable connectivity in demanding conditions. M39029 rear release crimp contacts ensure secure connections, making them suitable for military and aerospace applications.