Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 80547 found under Valve Regulating Te by Spirax Sarco Inc. The National Stock Number assigned to this part is 4820002768998, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 80547.