Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KX-TS500W found under Headset Microphone by Cdw Government Llc. The National Stock Number assigned to this part is 5965016262529, 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 KX-TS500W.