Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 512012 found under Extension Exhaust P by Towmotor Corp. The National Stock Number assigned to this part is 2990009277189, 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 512012.