The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offered in different plating options including cadmium-free finishes, they ensure durability and performance. Suitable for military and industrial applications, these connectors are environmentally sealed and come in wall mounting and jam nut receptacle options. With a mating type of bayonet, they guarantee easy and secure connections.