Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4480 found under Heater Coolant Engine by Rowan Bmi Corp. The National Stock Number assigned to this part is 2990001229605, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C4480.