The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front and rear wall mount options, alongside jam nut receptacles and RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable performance. Constructed with high-strength aluminum shells, they come in various plating options like cadmium and electroless nickel. With an operating temperature range from -65°C to 200°C, these connectors are ideal for demanding applications that require durability and resilience.