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 capable of operating in temperatures ranging from -65 °C to 200 °C. Available in various mounting options including front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. The connector family includes RFI grounding plugs and utilizes M39029 rear release crimp contacts. Constructed with high strength aluminum shells, they come in a variety of plating options such as cadmium-free finishes. Ideal for military and aerospace applications, these connectors provide reliable connectivity in demanding conditions.