MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are reliable in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. The rugged aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Whether for military or commercial applications, these connectors, with bayonet coupling and jam nut mounting options, ensure durable and efficient electrical connections.