MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, with an operating temperature range of -65°C to 200°C. This connector family includes front and rear wall mount and jam nut receptacles, along with RFI grounding plugs, offering versatility in harsh environments. With 9 shell sizes and 52 insert arrangements available, they use M39029 rear release crimp contacts in various sizes, ensuring secure connections. Constructed with high-strength aluminum shells and offering a range of plating options including cadmium-free finishes, these connectors are durable and reliable. Suitable for military and aerospace applications, they meet stringent MIL-DTL-38999 I specifications, guaranteeing performance under demanding conditions.