MIL-DTL-38999 Series I connectors are built for rugged environments, featuring up to 128 contacts housed in an insert with environmental sealing. With a wide operating temperature range from -65°C to 200°C, these connectors are reliable in harsh conditions. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts for secure connections. The connectors come in durable aluminum shells with plating options such as cadmium and nickel. Meeting stringent military specifications, they offer high performance and reliability for demanding applications.