Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HMN-1056D found under Microphone Dynamic by Motorola Ltd. The National Stock Number assigned to this part is 5965014522973, 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 HMN-1056D.