Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ASTM A175 found under Steel Stock Assortm by American Society For Testing And. The National Stock Number assigned to this part is 9520012970662, and the Federal Supply Class is 9520 Structural Shapes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ASTM A175.