Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U90003309 found under Light Emitting Diod by Mactaggart Scott And Co Ltd. The National Stock Number assigned to this part is 6210226027736, 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 U90003309.