Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LR3 40 27 SE E0A5K found under Light Indicator by Aerospace Optics Inc. The National Stock Number assigned to this part is 6210015781823, and the Federal Supply Class is 6210 Indoor And Outdoor Electrical Lighting Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LR3 40 27 SE E0A5K.