MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range from -65 °C to 200 °C. This connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, available in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections in harsh environments. Constructed with high-strength aluminum shells, they come with various plating options, including cadmium-free finishes, meeting RoHS certifications. These connectors, compliant with military specification MIL-DTL-38999 I, are ideal for demanding applications requiring reliability and durability.