Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FW83 found under Packing Preformed by Trelleborg Sealing Solutions Us Inc. The National Stock Number assigned to this part is 5330000657522, 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 FW83.