MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert that is environmentally sealed. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize rear release crimp contacts for secure connections. The high-strength aluminum shells come with different plating options, including cadmium-free finishes for RoHS compliance. Whether you need front or rear wall mount or jam nut receptacles, these connectors ensure durable and efficient electrical connections, making them ideal for military and industrial applications.