Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KT1027 AND 503315 found under Pump Cooling System by Tymco International Inc. The National Stock Number assigned to this part is 2930013476678, and the Federal Supply Class is 2930 Engine Cooling System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KT1027 AND 503315.