MIL-DTL-38999 Series I connectors feature up to 128 contacts, offering environmental sealing and a wide operating temperature range from -65°C to 200°C. Available in various mount types including front wall, rear wall, and jam nut receptacles, these connectors are designed for harsh environments. With 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in different sizes, ensuring versatility. The high-strength aluminum shells come with options for plating, such as light iridescent yellow cadmium and electroless nickel, catering to specific application needs. RoHS certified finishes are also available. Suitable for military and industrial applications, these connectors provide reliable connectivity with their bayonet coupling and removable crimp contacts, meeting stringent performance requirements.