Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PF140-331 found under Muffler Exhaust by Abm Equipment And Supply Llc. The National Stock Number assigned to this part is 2990004229515, 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 PF140-331.