MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. These connectors are environmentally sealed, ensuring reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Made of high-strength aluminum, they come in 9 shell sizes and 52 insert arrangements, accommodating various applications. Utilizing M39029 rear release crimp contacts, they provide secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Available in different plating options, including cadmium-free finishes, they meet RoHS compliance standards. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors are ideal for demanding connectivity requirements.