Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X4234A-Z found under Filter Air Computer by Sun Microsystems Inc. The National Stock Number assigned to this part is 7050016042280, and the Federal Supply Class is 7050 Adp Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X4234A-Z.