MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments. With up to 128 contacts in an insert, these circular plugs are environmentally sealed and built for durability. Operating between -65°C and 200°C, they ensure reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts for secure connections. The connectors come in high-strength aluminum shells with a choice of plating options, including cadmium-free finishes. Meeting MIL-DTL-38999 I military specifications, they are ideal for applications requiring rugged and reliable connectivity.