Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H 307 GRC found under Handset by Joint Electronics Type Designation. The National Stock Number assigned to this part is 5965009368713, 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 H 307 GRC.