MIL-DTL-38999 Series I connectors boast exceptional durability with up to 128 contacts housed in an environmentally sealed insert. Designed for harsh environments, they offer reliable performance in temperatures ranging from -65°C to 200°C. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, this connector family caters to diverse application needs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, they come in a range of plating options, including cadmium-free finishes for RoHS compliance. Ideal for military and industrial use, these connectors ensure secure electrical connections in demanding settings.