Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VS1288B5 found under Washer by Alcoa Global Fasteners Inc. The National Stock Number assigned to this part is 1560008989024, 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 VS1288B5.