The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environments with an operating range of -65°C to 200°C. Available in various mounting options including front and rear wall mount, and jam nut receptacles, they offer reliable connectivity in military and aerospace applications. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure secure and efficient connections. Constructed with high-strength aluminum shells and offered in different plating options, such as electroless nickel and iridescent yellow cadmium, they meet stringent quality standards. RoHS compliant finishes are also available, making them suitable for diverse industrial needs.