Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EC50PLS found under Hanger Engine Exhaust System by Peterbilt Of Utahinc. The National Stock Number assigned to this part is 2990014824616, 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 EC50PLS.