MIL-DTL-38999 Series I connectors feature up to 128 contacts within an environmentally sealed insert, designed for harsh operating conditions with a temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer front and rear wall mount options, along with 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 such as electroless nickel and cadmium finishes. RoHS compliant variants are also available. These connectors, meeting stringent military specifications, are ideal for applications requiring durability and reliability in challenging environments.