Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MAC0158C000 found under Cap Protective Dust by L 3 Communications Electron. The National Stock Number assigned to this part is 5340010447407, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MAC0158C000.