MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in a sealed insert. Designed for harsh environments, they operate effectively in temperatures ranging from -65 °C to 200 °C. This connector family features front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With 9 shell sizes and 52 insert arrangements available, they accommodate various connection needs. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections in sizes 22D, 22M, 22, 20, 16, and 8 (including coax and twinax). Constructed with high-strength aluminum shells, these connectors come in a range of plating options, such as cadmium finishes and electroless nickel coating. Suitable for military and industrial applications, they meet stringent performance standards, including RoHS compliance for environmental responsibility.