Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VM27C256KMB-20 found under Microcircuit Memory by V L S I Technology Inc. The National Stock Number assigned to this part is 5962012619624, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VM27C256KMB-20.