MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts and environmental sealing. With an operating temperature range from -65 °C to 200 °C, these connectors are versatile and durable. 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 multiple plating options, including cadmium-free finishes for RoHS compliance. Whether for front or rear wall mount or jam nut receptacles, these connectors ensure optimal performance in demanding applications.