MIL-DTL-38999 Series I connectors are rugged, environmentally sealed solutions for demanding applications. With up to 128 contacts in a single insert, they offer high-density connectivity. Operating smoothly in temperatures ranging from -65°C to 200°C, these connectors are versatile and reliable. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. The connectors come in high strength aluminum shells with plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, catering to different environmental needs. Featuring bayonet coupling and a range of mounting options, they are ideal for military and industrial applications requiring secure and durable connectivity.