The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. They are suitable for military and aerospace applications, with front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections with gold-plated contacts for optimal conductivity. The bayonet coupling mechanism and removable crimp contacts make them easy to install and maintain, while their environment-resistant design guarantees durability. Meeting MIL-DTL-38999 I specifications, these connectors are ideal for demanding industrial and military environments.