Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D21140BSIZEATANALUM found under Panel Blank by California Chassis Inc. The National Stock Number assigned to this part is 5975007646914, 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 D21140BSIZEATANALUM.