Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21542033-006 found under Washer Flat by Cargotec Sweden Ab Macgregor Cranes. The National Stock Number assigned to this part is 5310014827971, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 21542033-006.