Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D10YB found under Drill Electric Portable by Hitachi Kokusai Electric America. The National Stock Number assigned to this part is 5130015473046, and the Federal Supply Class is 5130 Hand Tools Power Driven. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D10YB.