Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A2500 found under Semiconductor Devic by Aiken Advanced Systems Inc. The National Stock Number assigned to this part is 5980013801930, and the Federal Supply Class is 5980 Optoelectrical Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A2500.