MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts in various sizes, ensuring secure connections. Constructed with durable aluminum shells and offered in a range of plating options, including RoHS certified finishes, they guarantee reliable performance in extreme conditions. The connectors, meeting military specification MIL-DTL-38999 I, are ideal for applications requiring rugged and dependable electrical connectivity.