MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in an insert. Designed for harsh environments, these connectors are sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options like front and rear wall mount as well as jam nut receptacles, they ensure versatile installation. The connectors, complying with military specification MIL-DTL-38999 I, come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with high-strength aluminum shells, they are available in plating options such as gold, electroless nickel, and cadmium finishes. Meeting stringent standards for reliability, these connectors are ideal for applications requiring durable and high-performance electrical connections.