Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3SB3400 1G found under Lampholder by Siemens Corp. The National Stock Number assigned to this part is 6250123761027, 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 3SB3400 1G.