Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number YR249 found under Tube Assembly Oil F by York International Corporation. The National Stock Number assigned to this part is 2805003171662, 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 YR249.