Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7A172-503A found under Capacitor Fixed Pla by Lewis Corp. The National Stock Number assigned to this part is 5910012968681, and the Federal Supply Class is 5910 Capacitors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7A172-503A.