The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, these connectors are environmentally sealed for reliable performance. Available in various shell sizes and insert arrangements, they offer versatility for different applications. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors ensure durability and compliance with industry standards. With options for front and rear wall mount, as well as jam nut receptacles, they provide flexibility in installation. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. The bayonet coupling mechanism allows for easy mating. Ideal for military and industrial use, the MIL-DTL-38999 Series I connectors are essential for maintaining connectivity in demanding settings.