Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WAL-B28-00912 found under Nut Plain Hexagon by Hunt Valve Company Inc. The National Stock Number assigned to this part is 5310011039026, 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 WAL-B28-00912.