MIL-DTL-38999 Series I connectors offer reliable performance in harsh environments with up to 128 contacts housed in a sealed insert. Designed for durability, they feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. These connectors, meeting military specifications, are crafted from high-strength aluminum with various plating options available, including cadmium-free finishes. Operating seamlessly in temperatures ranging from -65°C to 200°C, they are ideal for demanding applications that require rugged and dependable connectivity.