Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CA21078-3 found under Nrp Ring C313 by Alcoa Global Fasteners Inc. The National Stock Number assigned to this part is 1680016207797, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CA21078-3.