MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts in an insert, ideal for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations such as front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in design. With 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable connectivity. Constructed with high strength aluminum shells and offered in multiple plating options including electroless nickel and cadmium finishes, they ensure durability and performance. RoHS certified cadmium free finishes are also available, catering to environmental regulations. Perfect for military and industrial applications, these connectors guarantee secure and efficient electrical connections.