Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2554663000 found under Arrester Spark Exha by Mechanical Equipment Company Inc. The National Stock Number assigned to this part is 2990015276298, 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 2554663000.