MIL-DTL-38999 Series I connectors are designed for harsh environments, offering up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are suitable for a wide range of applications. Featuring front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, they provide versatile connectivity solutions. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts, ensuring reliable performance. Constructed with high strength aluminum shells and offering various plating options, including RoHS certified finishes, these connectors are durable and corrosion-resistant. Ideal for military and industrial use, they meet stringent MIL-DTL-38999 I specifications.