Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CZM-4 found under Electronic Module Standardized by Siemens Industry Inc. The National Stock Number assigned to this part is 5963015119800, and the Federal Supply Class is 5963 Electronic Modules. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CZM-4.