Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B4AZ6148L found under Ring Set Piston by Ford Motor Co Ltd. The National Stock Number assigned to this part is 2805009784726, and the Federal Supply Class is 2805 Gasoline Reciprocating Engines Except Aircraft And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B4AZ6148L.