MIL-DTL-38999 Series I connectors are designed for harsh environments, with up to 128 contacts in an insert that is environmentally sealed for reliable performance. Operating in temperatures ranging from -65 °C to 200 °C, these connectors offer durability and versatility. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts for secure connections. With options for plating, including cadmium-free finishes, and made of high-strength aluminum, these connectors ensure longevity and performance. Suitable for military and industrial applications, they meet MIL-DTL-38999 I specifications, offering a range of receptacle types for different mounting requirements. From front wall mount to rear wall mount and jam nut receptacles, they provide flexibility for installation. Featuring gold contact plating and a mating type of bayonet, these connectors are ideal for demanding environments where reliability is paramount.