Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 712-000 ITEM 23 found under Disk Valve by Graham Co Inc. The National Stock Number assigned to this part is 4810013566959, 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 712-000 ITEM 23.