MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within a sealed insert. With an impressive operating temperature range of -65°C to 200°C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with plating options including cadmium-free finishes. The connector family includes front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections with gold plating for optimal conductivity. Meeting military specification MIL-DTL-38999 I, these circular plugs are ideal for demanding applications requiring durability and environmental resistance.