Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12F5551-15 found under Panel Indicating Light Transmitt by Supreme Edgelight Devices Inc. The National Stock Number assigned to this part is 6220010787484, and the Federal Supply Class is 6220 Electric Vehicular Lights And Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12F5551-15.