Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HMN1037B found under Microphone Dynamic by Motorola Communications Group Parts. The National Stock Number assigned to this part is 5965013472955, 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 HMN1037B.