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. This connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, offering versatility in connectivity. Compliant with military specification MIL-DTL-38999 I, these circular receptacles are built for durability, with high-strength aluminum shells and various plating options available, such as cadmium-free finishes. They utilize M39029 rear release crimp contacts in multiple sizes, ensuring reliable connections. With a bayonet coupling mechanism and gold-plated contacts, these connectors guarantee secure mating and optimal conductivity. Perfect for applications requiring rugged performance, they are suitable for use in diverse industries.