MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for rugged use in harsh environments. With an operating temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Offering front and rear wall mount options, as well as jam nut receptacles, these connectors are ideal for military and aerospace applications.