MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an 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 plated in options such as electroless nickel and cadmium finishes, these connectors ensure durability and performance. Suitable for military and industrial applications, they provide a reliable solution for demanding environments.