Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM-B-447404 found under Disc Body by I T I Electronics Inc. The National Stock Number assigned to this part is 5365010996156, 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 SM-B-447404.