Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number O40 2X3N70 found under O Ring by Trelleborg Sealing Solutions Germany. The National Stock Number assigned to this part is 5331121327547, 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 O40 2X3N70.