Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N3-20293PBC2 found under Worm Shaft by The Babcock And Wilcox Company. The National Stock Number assigned to this part is 3040003007801, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N3-20293PBC2.