MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65°C and 200°C, these connectors come in various shell sizes and insert arrangements, offering versatility for different applications. Made of high-strength aluminum, they are available with plating options such as cadmium and nickel. With Bayonet coupling and jam nut mounting, these connectors ensure secure and reliable connections. The removable crimp contacts, with gold plating for optimal conductivity, guarantee a mating life of 500 cycles. Suitable for potting applications, these connectors are ideal for military and industrial use.