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, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offered in different plating options, including cadmium-free finishes, these connectors ensure durability and compliance. The connector types include front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, catering to diverse application needs. With gold contact plating, they guarantee optimal conductivity, while their bayonet coupling mechanism and straight plug design facilitate easy installation. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors meet stringent quality standards for performance and reliability.