Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CA17121-13 found under Fastener Assembly Turnlock by Alcoa Global Fasteners Inc. The National Stock Number assigned to this part is 5325010497889, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CA17121-13.