Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DPLL0401-412 found under Handset by Nal Research Corp. The National Stock Number assigned to this part is 5965016286716, 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 DPLL0401-412.