Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4900604 found under Double Lip Trim by Elgin Sweeper Company Inc. The National Stock Number assigned to this part is 6610015099881, and the Federal Supply Class is 6610 Flight Instruments. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4900604.