Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 291 JET ITEM 80 found under Washer Lock by Hamilton C W F And Co Ltd. The National Stock Number assigned to this part is 5310014135529, 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 291 JET ITEM 80.