Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C501-23-AF13 found under Slide Drawer Extension by Standard Precision Inc. The National Stock Number assigned to this part is 5340012921273, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C501-23-AF13.