Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 631 477258 006 found under Keytop Illuminated by Cmc Lectronique Inc. The National Stock Number assigned to this part is 5930010711109, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 631 477258 006.