Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Z1989517-1 found under Circuit Card Assembly by Honeywell Aerospace. The National Stock Number assigned to this part is 5998010509930, and the Federal Supply Class is 5998 Electrical And Electronic Assemblies Boards Cards And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like Z1989517-1.