Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21463 found under Gasket by Valcor Engineering Corp. The National Stock Number assigned to this part is 5330002222794, 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 21463.