MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles, these connectors are crucial for military applications. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity in various configurations. The high-strength aluminum shells come in 9 sizes with plating options such as cadmium and nickel, meeting RoHS compliance standards. Perfect for demanding environments, these connectors guarantee durable performance in critical operations.