MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for robust connectivity. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors are versatile in their applications. The high-strength aluminum shells come with multiple plating options, including cadmium-free finishes for RoHS compliance. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they ensure secure connections in military and aerospace settings. Utilizing M39029 rear release crimp contacts, these connectors meet stringent military specifications for durability and reliability.