The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, featuring front and rear wall mount options as well as jam nut receptacles for secure installations. Designed for harsh environments, these connectors are sealed to withstand extreme temperatures ranging from -65 °C to 200 °C. Compliant with military specifications, they ensure reliable performance in demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for efficient wiring. The high-strength aluminum shells come in different plating options, including cadmium-free finishes for environmental compliance. With gold-plated contacts and bayonet coupling, these connectors guarantee excellent conductivity and durability, making them ideal for aerospace, defense, and industrial use.