Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W15.21.2 12VDC 10CPS found under Counter Electrical by Kessler Ellis Products Co. The National Stock Number assigned to this part is 6680014213599, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W15.21.2 12VDC 10CPS.