Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 403-740 found under Pump Cooling System Engine by Eagle Engineering And Mfg. The National Stock Number assigned to this part is 2930013654611, 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 403-740.