Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0A-4999 found under by Taber Extrusions Llc. The National Stock Number assigned to this part is 9540005422727, and the Federal Supply Class is 9540 Structural Shapes Nonferrous Base Metal. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 0A-4999.