MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in a sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount options, along with jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Their high strength aluminum shells come in various plating options, including cadmium-free finishes for RoHS compliance. Ideal for military and industrial applications, these connectors guarantee durability and conductivity in demanding settings.