Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AK20838UB found under Mandrel Honing by Fenwick. The National Stock Number assigned to this part is 3460011344532, and the Federal Supply Class is 3460 Machine Tool Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AK20838UB.