Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 902419 found under Spacer Ring by Will Burt Company The. The National Stock Number assigned to this part is 5365016018691, 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 902419.