MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, with environmental sealing and a wide operating temperature range of -65 °C to 200 °C. Available in 9 shell sizes and 52 insert arrangements, these connectors come in various mounting options including front and rear wall mount, and jam nut receptacles, with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they offer reliability in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high strength aluminum shells, they come with plating options such as cadmium finishes and RoHS certified options. Ideal for harsh environments, these connectors ensure secure and durable electrical connections in demanding applications.