Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A-4294 found under Stand Paper Cutter by Challenge Machinery Co The. The National Stock Number assigned to this part is 3610005688878, and the Federal Supply Class is 3610 Printing Duplicating And Bookbinding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A-4294.