Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FR15 27 found under Spring And Retainer by Lucas Aerospace Power Equipment. The National Stock Number assigned to this part is 6125003423372, and the Federal Supply Class is 6125 Converters Electrical Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FR15 27.