MIL-DTL-38999 Series I connectors are rugged and reliable, offering up to 128 contacts in an environmentally sealed insert. Operating in temperatures ranging from -65 °C to 200 °C, they are suitable for harsh environments. Available in various shell sizes and insert arrangements, these connectors feature 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. Constructed with high strength aluminum shells, they come with plating options like gold, electroless nickel, and more. Their RoHS certified finishes make them environmentally friendly. Ideal for military and industrial applications, these connectors provide durable performance with a service rating of I.