MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. With options for front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. 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, these connectors come in high-strength aluminum shells with various plating options, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial applications, they provide reliable performance in demanding conditions.