MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are designed for durability. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, with RFI grounding plugs for added versatility. Constructed with high-strength aluminum shells and offering plating options such as cadmium and electroless nickel, these connectors ensure reliable performance in demanding applications. RoHS compliant finishes are also available, meeting environmental standards. Ideal for military and industrial use, the MIL-DTL-38999 Series I connectors provide secure and efficient electrical connections in critical operations.