Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A53-1590 found under Gasket by Barber Greene Co. The National Stock Number assigned to this part is 5330008309344, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A53-1590.