MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts housed in a sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, they ensure reliable connectivity in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with multiple plating options, including RoHS-certified finishes. The family includes front and rear wall mount receptacles, as well as jam nut receptacles, all designed for military specifications. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. The connectors, with their bayonet coupling and gold contact plating, provide durability and conductivity, making them ideal for demanding applications.