Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2232-173 found under Mandrel Roller Tube Expander by Fatigue Technology International. The National Stock Number assigned to this part is 3456014366645, and the Federal Supply Class is 3456 Cutting And Forming Tools For Secondary Metalworking Machinery. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2232-173.