The MIL-DTL-38999 Series I connectors offer robust connectivity solutions 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 operating temperatures ranging from -65°C to 200°C, they provide reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering multiple plating options, including cadmium-free finishes, these connectors ensure durability and conductivity. Ideal for military and industrial applications, the MIL-DTL-38999 Series I connectors meet stringent quality standards for reliable operation in demanding environments.