MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With a wide operating temperature range of -65°C to 200°C, they offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with options for plating, including cadmium-free finishes. The connector family includes front and rear wall mount, as well as jam nut receptacles, all with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Suitable for military and industrial applications, these connectors provide durability and performance, meeting stringent standards for environmental resistance.