Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 522-0001A REV B-Q70 found under Keyboard Data Entry by Cortron Inc. The National Stock Number assigned to this part is 7025014861621, and the Federal Supply Class is 7025 Adp Input Output And Storage Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 522-0001A REV B-Q70.