Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ISO 10511 M5-8-A2K found under Nut Self Locking Hexagon by International Organization. The National Stock Number assigned to this part is 5310016634737, 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 ISO 10511 M5-8-A2K.