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 wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. The connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, accommodating different contact types. Constructed with high-strength aluminum shells and offered in multiple plating options such as electroless nickel and cadmium finishes, they ensure durability and reliability. Suitable for military and industrial use, the MIL-DTL-38999 I connectors provide secure and efficient electrical connections in challenging conditions.