Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AD2 SM58 found under Microphonedynamic by Shure Bros Inc. The National Stock Number assigned to this part is 5965016780281, and the Federal Supply Class is 5965 Headsets Handsets Microphones And Speakers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AD2 SM58.