Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 427 480 640 found under Belt Guard by Hayes And Stolz Industrial. The National Stock Number assigned to this part is 3030016950610, and the Federal Supply Class is 3030 Belting Drive Belts Fan Belts And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 427 480 640.