MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range spanning from -65°C to 200°C, these connectors ensure reliable connectivity in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts, including sizes 22D, 22M, 22, 20, 16, and 8 for coaxial and twinaxial applications. Constructed with high-strength aluminum shells, they come in a range of plating options, such as cadmium and nickel, meeting different environmental requirements. The connectors, compliant with MIL-DTL-38999 I specifications, feature jam nut mounting options and bayonet coupling for secure attachment. Whether in military or industrial settings, these connectors guarantee durability and performance, with RoHS-compliant finishes available for environmentally conscious applications.