Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LN20004 found under Seal Plain Encased by Prestolite Electric Inc. The National Stock Number assigned to this part is 5330001790989, 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 LN20004.