Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SB14F121 found under Spacer by Bridgestone Americas Tire. The National Stock Number assigned to this part is 5365007734160, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SB14F121.