Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SL77AMBER12OV found under Lamp Cartridge by Arcolectric Corp. The National Stock Number assigned to this part is 6240012358281, 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 SL77AMBER12OV.