Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U6414 found under Cap Filler Opening by Siemens Water Technologies Corp. The National Stock Number assigned to this part is 2930004281776, and the Federal Supply Class is 2930 Engine Cooling System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U6414.