MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. These connectors, with a wide operating temperature range of -65 °C to 200 °C, offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes, meeting RoHS certification. Featuring front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, the MIL-DTL-38999 I connector family ensures durability and conductivity in military and industrial applications.