Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 298-00-140 ASSY A 1IN PIECE 10 found under Stem Fluid Valve by Circor Intl Inc. The National Stock Number assigned to this part is 4820000532078, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 298-00-140 ASSY A 1IN PIECE 10.