Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A-A-549 found under Cushioning Material Packaging by Federal Commercial Item Description. The National Stock Number assigned to this part is 8135001429016, and the Federal Supply Class is 8135 Packaging And Packing Bulk Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A-A-549.