MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors are suitable for demanding applications. Available in various configurations including front and rear wall mount, as well as jam nut receptacles, they offer versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure connections. The high strength aluminum shells come in different plating options such as light iridescent yellow cadmium and electroless nickel, meeting various requirements. RoHS certified finishes are also available, making them environmentally friendly. These connectors are ideal for military and industrial use, providing reliable performance in challenging conditions.