Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HYLAN-G-F-20 found under by Sanofi Aventis Holdings Ltd. The National Stock Number assigned to this part is 6505015946041, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HYLAN-G-F-20.