The MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts housed in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come with multiple plating options, including cadmium-free finishes. Offering front and rear wall mount as well as jam nut receptacles, these connectors ensure versatility in installation. With a bayonet coupling design and gold contact plating, they guarantee durability and conductivity. Compliant with military specification MIL-DTL-38999 I, these connectors are suitable for use in military and aerospace applications.