MIL-DTL-38999 Series I connectors feature up to 128 contacts, offering environmental sealing for reliable performance in harsh conditions. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of 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 in different plating options, including cadmium-free finishes, ensuring durability and compliance with RoHS regulations. Designed for military specifications, these circular receptacles are ideal for wall mounting, providing reliable connectivity in demanding environments.