Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 213227 found under Diaphragm Valve Flat by Abm Equipment And Supply Llc. The National Stock Number assigned to this part is 4820004471120, 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 213227.