Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 148A6355-90 found under Beam Structural by The Boeing Company. The National Stock Number assigned to this part is 9520016133613, and the Federal Supply Class is 9520 Structural Shapes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 148A6355-90.