MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts housed in a durable insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front wall mount, rear wall mount, and jam nut receptacles, they provide flexibility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure reliable connections. Constructed with high-strength aluminum shells and available in different plating options, including RoHS compliant finishes, they meet stringent quality standards for military and aerospace applications.