MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating various applications. Made with high-strength aluminum shells and available in different plating options including cadmium-free finishes, they guarantee durability and reliability. Perfect for military and industrial use, these connectors meet stringent MIL-DTL-38999 I specifications, providing excellent performance in demanding conditions.