Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 43380107 found under Spacer Ring by Burtek Inc. The National Stock Number assigned to this part is 5365016597134, 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 43380107.