Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B5051 found under Lamp Incandescent by Rowan Bmi Corp. The National Stock Number assigned to this part is 6240001558014, and the Federal Supply Class is 6240 Electric Lamps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B5051.