MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors ensure secure installations. With 52 insert arrangements and M39029 rear release crimp contacts in various sizes, they provide flexibility for diverse applications. Constructed with high-strength aluminum shells and available in multiple plating options, including RoHS-certified finishes, they guarantee reliable performance. Operating at temperatures ranging from -65 °C to 200 °C, these connectors are ideal for demanding military and aerospace environments.