MIL-DTL-38999 Series I connectors feature up to 128 contacts, offering environmental sealing and a wide operating temperature range of -65 °C to 200 °C. This robust connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. With 9 shell sizes and 52 insert arrangements available, they utilize M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, these connectors come with a choice of plating options, including RoHS-certified cadmium-free finishes. Suitable for demanding applications, they provide reliable connectivity in harsh environments.