Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CP39952 found under Packing Preformed by Siemens Water Technologies Corp. The National Stock Number assigned to this part is 5330001757400, 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 CP39952.