MIL-DTL-38999 Series I connectors boast exceptional durability and performance in harsh environments. With up to 128 contacts housed in a secure insert, these connectors are ideal for demanding applications. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they offer versatility in installation. Available in 9 shell sizes and 52 insert arrangements, they accommodate various contact types, including M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, these connectors ensure reliable conductivity. With a wide operating temperature range of -65 °C to 200 °C, they guarantee performance in extreme conditions. RoHS compliant options are also available, making them environmentally friendly choices for your connectivity needs.