MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in a rugged insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, as well as jam nut receptacles, they provide flexibility for different applications. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Available in 9 shell sizes and 52 insert arrangements, they cater to diverse requirements. Constructed with high strength aluminum shells and offered in different plating options, including RoHS certified finishes, they meet stringent quality standards. With their bayonet coupling and gold-plated contacts, these connectors guarantee superior performance with a mating life of 500 cycles. Suitable for military and industrial use, they are ideal for applications where durability and reliability are paramount.