Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21345PC43 found under Belt Positive Drive by Hexco International. The National Stock Number assigned to this part is 3030000019226, 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 21345PC43.