MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert configurations, they offer versatility for different applications. These connectors, designed for harsh environments, come in aluminum shells with options for plating such as cadmium and nickel. They are RoHS compliant with finishes that meet environmental standards. With front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide secure connections in demanding conditions. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance, making them ideal for military and industrial applications.