MIL-DTL-38999 Series I connectors feature up to 128 contacts in an 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 in various applications. The connectors, compliant with military specification MIL-DTL-38999 I, come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and available in different plating options like electroless nickel and cadmium finishes, they guarantee durability and reliability. With RoHS-certified cadmium-free options, these connectors meet environmental standards. Ideal for demanding environments, they provide a reliable solution for electrical connectivity needs.