Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 437 01 S0003 found under Light Indicator by Marinette Marine Corporation. The National Stock Number assigned to this part is 6210016589454, 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 437 01 S0003.