Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CCS7503-8 found under Tool Assembly Fastener by Huck International Inc. The National Stock Number assigned to this part is 5120011429861, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CCS7503-8.