MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front and rear wall mount options, as well as jam nut receptacles, they offer versatile connectivity solutions. Operating between -65°C and 200°C, these connectors are environmentally sealed for reliable performance. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Available in 9 shell sizes and 52 insert arrangements, they cater to various application needs. Constructed with high-strength aluminum shells, they come with plating options like cadmium and nickel for enhanced durability. RoHS compliant finishes are also available, making them suitable for diverse industries. With a service rating of I and ingress protection, these connectors guarantee efficient and long-lasting operation in demanding environments.