The MIL-DTL-38999 Series I connectors offer durable performance in harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they boast M39029 rear release crimp contacts for secure connections. Constructed with high strength aluminum shells and offered in different plating options, including cadmium-free finishes, these connectors ensure reliable conductivity. The jam nut mounting design and bayonet coupling mechanism provide easy installation and removal. Meeting military specification MIL-DTL-38999 I, they are designed for rugged service, making them suitable for a variety of industrial and military applications.