Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B47A2971 found under Lampholder by Cardwell Condenser Corp. The National Stock Number assigned to this part is 6250001589000, and the Federal Supply Class is 6250 Ballasts Lampholders And Starters. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B47A2971.