The MIL-DTL-38999 Series I connectors are designed for harsh environments, offering up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for various applications. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide versatility. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offering a range of plating options, including cadmium-free finishes, they ensure durability and reliability. Perfect for military and industrial use, these connectors meet MIL-DTL-38999 I specifications.