Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 009-000027-000 found under Loudspeaker Assembly by Insitu Inc. The National Stock Number assigned to this part is 5965016276201, 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 009-000027-000.