MIL-DTL-38999 Series I connectors are designed for harsh environments, offering up to 128 contacts in an insert. These connectors are environmentally sealed, with an operating temperature range from -65°C to 200°C. Featuring front wall mount, rear wall mount, and jam nut receptacles, they provide versatile mounting options. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Available in 9 shell sizes and 52 insert arrangements, they cater to various application needs. Made with high-strength aluminum shells and offering a range of plating options, including RoHS certified finishes, these connectors guarantee durability and reliability. Suitable for military and industrial use, they meet MIL-DTL-38999 I specifications, providing a dependable solution for demanding environments.