Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6502-1014 found under Tachometer Dual by Instrument Specialties Company. The National Stock Number assigned to this part is 6620006197769, and the Federal Supply Class is 6620 Engine Instruments. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6502-1014.