Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MK18.20 110VAC 18CPS found under Indicator Total Revolution by Kessler Ellis Products Co. The National Stock Number assigned to this part is 6320013148017, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MK18.20 110VAC 18CPS.