Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SW-01004 ITEM 1 found under Nut Tensioner by Superbolt Inc. The National Stock Number assigned to this part is 5310016276572, 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 SW-01004 ITEM 1.