MIL-DTL-38999 Series I connectors offer robust connectivity solutions, featuring up to 128 contacts in an insert for versatile applications. Built to withstand harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. The family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, providing flexibility in installation. With 9 shell sizes and 52 insert arrangements available, they accommodate various contact configurations, utilizing M39029 rear release crimp contacts. Constructed with high strength aluminum shells, these connectors come in a range of plating options, including cadmium-free finishes for RoHS compliance. Ideal for military and industrial use, they ensure reliable performance with their durable construction and conductivity.