Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ELS15-045 found under Chain Roller by Roller Bearing Co Of America. The National Stock Number assigned to this part is 3020004134544, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ELS15-045.