Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 09N4175 found under Loudspeaker Electro by International Business Machines Corp. The National Stock Number assigned to this part is 5965015588794, 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 09N4175.