MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range from -65°C to 200°C, they are suitable for demanding applications. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with plating options such as gold, electroless nickel, and cadmium finishes. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity, with a mating type of bayonet for secure coupling. Designed for military specifications, these connectors are ideal for environments requiring high durability and performance.