MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts housed in a rugged insert. With front wall mount, rear wall mount, and jam nut receptacles, they provide versatile installation options. These connectors, compliant with military specification MIL-DTL-38999 I, are designed for durability, with a wide operating temperature range of -65°C to 200°C. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and various plating options, including RoHS certified finishes, they ensure longevity and performance in demanding applications. Suitable for back panel box mounting, these connectors are essential for military and industrial environments requiring reliable electrical connections.