Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B38ZW found under Ringdee by Buyers Products Company. The National Stock Number assigned to this part is 5365016948375, 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 B38ZW.