MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range from -65°C to 200°C. This connector family includes front and rear wall mount as well as jam nut receptacles with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells and offered in multiple plating options including cadmium-free finishes, these connectors are ideal for military and aerospace applications, ensuring reliable performance in demanding conditions.