Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA55589-6A found under Hinge Butt by Federal Commercial Item Description. The National Stock Number assigned to this part is 5340010541579, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AA55589-6A.