Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 87-04331-001 found under Lightlandingaircraft by Luminescent Systems Inc. The National Stock Number assigned to this part is 6220016727115, 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 87-04331-001.