Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 666219-507 found under Generator Assembly by R And N Invesment Properties Lc. The National Stock Number assigned to this part is 6115004776670, and the Federal Supply Class is 6115 Generators And Generator Sets Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 666219-507.