Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6680850 found under Valve Heater Contro by Melroe Co. The National Stock Number assigned to this part is 2540016189561, and the Federal Supply Class is 2540 Vehicular Furniture And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6680850.