The MIL-DTL-38999 Series I connectors offer exceptional performance in harsh environments with their rugged construction and environmental sealing. Featuring up to 128 contacts housed in a durable insert, these connectors are designed for reliable operation in extreme conditions, with an impressive operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they accommodate a wide range of applications. The high-strength aluminum shells come in different plating options, including RoHS-certified finishes, ensuring both durability and compliance with environmental regulations. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide versatile connectivity solutions. Utilizing M39029 rear release crimp contacts, they offer secure and efficient contact termination. Trusted for their quality and performance, MIL-DTL-38999 Series I connectors are ideal for military, aerospace, and industrial applications where reliability is paramount.