Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 328 SER.1-09 found under Grinder Electric Portable by Dremel Mfg Co. The National Stock Number assigned to this part is 5130013365024, 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 328 SER.1-09.