Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 643 510 6 found under Gasket by Sew Eurodrive Gmbh And Co. The National Stock Number assigned to this part is 5330123670416, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 643 510 6.