The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an insert, providing a robust and environmentally sealed solution for demanding applications. With an operating temperature range spanning from -65 °C to 200 °C, these connectors are designed to withstand extreme conditions. Available in various mounting options 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, catering to diverse contact arrangements. Constructed with high-strength aluminum shells and offered with multiple plating options such as electroless nickel and cadmium finishes, they ensure reliable performance in harsh environments. The RoHS compliant versions guarantee environmental sustainability. With a focus on durability and functionality, the MIL-DTL-38999 Series I connectors are ideal for military, aerospace, and industrial applications.