Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21 59 00 31 found under Bouton Butee by Dassault Equipement Div Dedassault. The National Stock Number assigned to this part is 1680143727994, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 21 59 00 31.