Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XB4BD33 found under Switch Rotary by Fincantieri Spa. The National Stock Number assigned to this part is 5930015706878, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XB4BD33.