Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RSDC4S-FR found under Loudspeaker Assembl by Misco Minneapolis Speaker Company. The National Stock Number assigned to this part is 5965015849601, 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 RSDC4S-FR.