The MIL-DTL-38999 Series I connectors offer exceptional performance in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range spanning from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. The high-strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Whether it's front wall mount, rear wall mount, or jam nut receptacles, these connectors provide secure and efficient connections for military and industrial use.