The MIL-DTL-38999 Series II connectors are designed for demanding environments, featuring up to 128 contacts in an insert and robust environmental sealing. With an operating temperature range of -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various configurations including front and rear wall mounts, jam nut, and box mounts, they provide versatility for different applications. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors ensure durability and corrosion resistance. The use of M39029 rear release crimp contacts guarantees secure connections, while the bayonet coupling mechanism allows for easy mating. Ideal for military and aerospace applications, the MIL-DTL-38999 Series II connectors meet stringent performance standards for reliability and functionality.