MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering rugged, environmentally sealed performance for harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors are designed for durability. Available in various styles including front and rear wall mount receptacles, as well as jam nut receptacles and RFI grounding plugs, they suit a range of applications. Constructed with high-strength aluminum shells and utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. Plating options include light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS compliant finishes available. Ideal for military and industrial use, these connectors offer secure, conductive connections in demanding conditions.