The MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. With an operational temperature range spanning from -65 °C to 200 °C, these connectors are designed for durability. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they meet stringent military specifications. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offered in different plating options such as cadmium and electroless nickel, these connectors provide versatility for a wide range of applications. Meeting RoHS compliance standards, they are ideal for demanding environments requiring rugged and reliable connectivity.