MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range from -65 °C to 200 °C, they offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high strength aluminum shells with options for different plating finishes. The connectors include front and rear wall mount receptacles, as well as jam nut receptacles, all with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections with options for RoHS compliant finishes. Suitable for military and industrial applications, these connectors provide durable and efficient electrical connectivity.