MIL-DTL-38999 Series I connectors feature up to 128 contacts in an 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, this connector family includes RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in various sizes. Constructed with high strength aluminum shells, they come in plating options such as cadmium and nickel, with RoHS compliant finishes. Suitable for military and industrial applications, these connectors ensure reliable performance in demanding conditions.