Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PK-10227503500005 found under Packing Preformed by Specialty Seals And Accessories Inc. The National Stock Number assigned to this part is 5330015562646, 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 PK-10227503500005.