Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5TIR108231 found under Bolt U by Walvoil Spa. The National Stock Number assigned to this part is 5306151489897, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5TIR108231.