Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 920-13-001-3939 found under Bearing Assembly by Delta International Inc. The National Stock Number assigned to this part is 3405011062574, and the Federal Supply Class is 3405 Saws And Filing Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 920-13-001-3939.