Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74K000003-2055 found under Patch Structural Co by Alcoa Global Fasteners Inc. The National Stock Number assigned to this part is 1560015156503, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74K000003-2055.