MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable connectivity with sizes ranging from 22D to 8. Constructed with high-strength aluminum shells, they come in plating options such as cadmium and nickel, meeting RoHS compliance standards. Ideal for military and industrial applications, these connectors provide durability and performance in demanding conditions.