The MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts in an insert. Designed for durability, they are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. The connector family includes front and rear wall mount receptacles, as well as jam nut receptacles, all with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance with gold-plated contacts and a mating type of bayonet coupling. Suitable for military and industrial applications, they meet MIL-DTL-38999 I specifications for quality and performance.