Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D21140BSIZEHTANALUM found under Panel Blank by U S Dept Of Transportation Federal. The National Stock Number assigned to this part is 5975000277104, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D21140BSIZEHTANALUM.