Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SBR30 found under Shearing Machine Sheet Metal Uni by U S Air Tool Co Inc. The National Stock Number assigned to this part is 3445014919689, and the Federal Supply Class is 3445 Punching And Shearing Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SBR30.