MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring front and rear wall mount options, as well as jam nut receptacles for secure installations. With up to 128 contacts, these circular connectors offer reliable connectivity in extreme conditions, with an operating temperature range of -65°C to 200°C. Utilizing M39029 rear release crimp contacts, they ensure efficient assembly and maintenance. Made with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial applications, these connectors meet stringent MIL-DTL-38999 I specifications, providing durability and performance in demanding environments.