Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 60018-021 found under Cap Valve by Ametek Thermal Systems Inc. The National Stock Number assigned to this part is 2915013380369, and the Federal Supply Class is 2915 Engine Fuel System Components Aircraft And Missile Prime Movers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 60018-021.