MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With 52 insert arrangements available, they utilize M39029 rear release crimp contacts in various sizes, ensuring versatile compatibility. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors provide reliable operation in temperatures ranging from -65 °C to 175 °C. Ideal for military and industrial applications, they deliver durable and efficient electrical connections.