Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DAA3122U437 found under Tube Assembly Metal by Triumph Aerostructures Llc. The National Stock Number assigned to this part is 4710013486532, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DAA3122U437.