Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BGZF0A0646 found under Ring Backup Aircraf by Bell Boeing Joint Project Office. The National Stock Number assigned to this part is 1680015771349, 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 BGZF0A0646.