MIL-DTL-38999 Series I connectors, part of the ruggedized 38999 connector family, are designed for harsh environments with up to 128 contacts. Featuring front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, these connectors offer versatility in installation. With operating temperatures ranging from -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Available in nine shell sizes and 52 insert arrangements, they accommodate various contact types, including M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and offered with different plating options, such as cadmium and nickel, they provide durability and corrosion resistance. Suitable for military and aerospace applications, these connectors meet stringent MIL-DTL-38999 I specifications, ensuring quality and reliability in demanding environments.