Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2001-031-001 found under Flange Output by Liberty Ventures Inti Llc. The National Stock Number assigned to this part is 2520013895378, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2001-031-001.