Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 998306030ND420 found under Ring Set Piston by American Terra Vehicles Inc. The National Stock Number assigned to this part is 2805005801817, 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 998306030ND420.