Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SMB-00 PC3 found under Cap Spring Cartridg by Flowserve Corporation. The National Stock Number assigned to this part is 4810012598003, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SMB-00 PC3.