Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UXC 93340 found under Valve Check by Siemens Water Technologies Corp. The National Stock Number assigned to this part is 4820016481523, 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 UXC 93340.