Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number US-70589-1 ITEM 45 found under Nut Special by John Crane Inc. The National Stock Number assigned to this part is 5310012821365, 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 US-70589-1 ITEM 45.