Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 392944 found under Exhaust System Engi by Simpson Lawrence Ltd Johnson And Evi. The National Stock Number assigned to this part is 2990012732501, 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 392944.