MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, designed for harsh environments. These circular receptacles, available in wall mount configurations, feature front and rear wall mount options and jam nut receptacles for secure installations. With an extensive range of insert arrangements and M39029 rear release crimp contacts, they ensure reliable connections in demanding applications. Built to withstand extreme temperatures from -65 °C to 200 °C, these connectors are environmentally sealed and come in high strength aluminum shells with various plating options, including cadmium-free finishes. Meeting MIL-DTL-38999 I military specifications, they guarantee exceptional durability and performance in critical operations.