MIL-DTL-38999 Series I connectors offer robust 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 9 shell sizes and 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts for reliable performance. Constructed with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes. Operating temperature ranges from -65 °C to 200 °C, making them ideal for demanding applications. RoHS compliant options are also available, ensuring environmental responsibility. With their durable construction and versatile design, MIL-DTL-38999 Series I connectors are a trusted choice for military and industrial applications.