MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, as well as jam nut receptacles, these connectors offer RFI grounding plugs for added versatility. Compliant with military specification MIL-DTL-38999 I, they come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts. Constructed with high-strength aluminum shells, they offer multiple plating options such as cadmium and nickel finishes. These connectors, with RoHS certified cadmium-free options, provide reliable connectivity for demanding applications.