MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. Designed for durability, these connectors have an operating temperature range between -65 °C and 200 °C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, they provide versatility in application. Constructed with high-strength aluminum shells and offered in different plating options such as electroless nickel, they meet stringent military specifications. The RoHS compliant cadmium-free finishes cater to environmental requirements, making these connectors reliable for critical operations.