MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for rugged applications with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility for different connectivity needs. The connectors come in high-strength aluminum shells with options for plating finishes such as electroless nickel and cadmium, meeting stringent military specifications. With wall mount and jam nut receptacles, they ensure secure installations in harsh environments. Utilizing M39029 rear release crimp contacts, these connectors provide reliable performance, with RoHS compliant options available. Ideal for demanding applications, they offer durability, conductivity, and environmental resistance for critical connectivity solutions.