The MIL-DTL-38999 Series I connectors offer rugged reliability for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they provide versatile connectivity options. These connectors are sealed for environmental protection and have an operating temperature range from -65°C to 200°C. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with high strength aluminum shells, they come in various plating options, including cadmium-free finishes. Ideal for military and industrial applications, these connectors ensure dependable performance in demanding conditions.