MIL-DTL-38999 Series I connectors boast up to 128 contacts within their environmentally sealed inserts, designed for robust performance in harsh environments. With an extensive operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Whether in front wall mount, rear wall mount, or jam nut receptacle configurations, these connectors offer reliable connectivity with their bayonet coupling design. Perfect for military and aerospace applications, they ensure durability with a mating life of 500 cycles.