MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, as well as jam nut receptacles, they ensure secure connections. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating diverse applications. Constructed with high-strength aluminum shells and offering a choice of plating options such as cadmium and nickel, they guarantee durability. With RoHS compliant finishes available, these connectors are ideal for military and industrial use, providing reliable performance in demanding conditions.