The MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts housed in an environmentally sealed insert. With an impressive operating temperature range of -65°C to 200°C, these connectors come in various styles including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts, ensuring secure connections. Constructed with durable aluminum shells and offering multiple plating options, such as cadmium and nickel, these connectors are built to last. With RoHS compliant finishes available, they meet stringent environmental standards. Perfect for military and industrial applications, these connectors provide reliable performance in demanding conditions.