MIL-DTL-38999 Series I connectors offer a rugged solution for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of 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 selection of plating options, including cadmium-free finishes for RoHS compliance. Offering front and rear wall mount options, as well as jam nut receptacles, these connectors provide versatility in installation. Whether in military or industrial settings, these connectors ensure durability and performance, with conductivity maintained through 500 mating cycles.