MIL-DTL-38999 Series I connectors offer durable and reliable connectivity in harsh environments. With up to 128 contacts sealed within the insert, these connectors can withstand temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes, ensuring compliance with RoHS regulations. Whether for front wall mount, rear wall mount, or jam nut applications, these connectors, with bayonet coupling for easy installation, provide efficient electrical connectivity for military and industrial use.