Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W55041256N found under Seal Plain by Pioneer Weston. The National Stock Number assigned to this part is 5330004054943, 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 W55041256N.