MIL-DTL-38999 Series I connectors are designed for harsh environments with up to 128 contacts in an insert, featuring front wall mount, rear wall mount, and jam nut receptacles. These connectors, compliant with military specification MIL-DTL-38999 I, offer reliable performance in extreme conditions, with an operating temperature range of -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax variants. Constructed with high-strength aluminum shells and available in various plating options such as electroless nickel and cadmium finishes, they guarantee durability and corrosion resistance. The RoHS compliant connectors are suitable for applications requiring environmental sealing and rugged performance, making them ideal for military, aerospace, and industrial use.