MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in connectivity. Operating between -65 °C and 200 °C, these connectors are environmentally sealed for reliable performance. Utilizing M39029 rear release crimp contacts, they come in 9 shell sizes and 52 insert arrangements, accommodating various needs. Constructed with high strength aluminum shells and available in different plating options, including RoHS certified finishes, they ensure durability and compliance. Suitable for military and industrial applications, these connectors provide secure and efficient electrical connections in demanding settings.