Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54A50B194 found under Pulley Container by Navair And Navsea Managed. The National Stock Number assigned to this part is 3020009388972, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 54A50B194.