Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3322F4B found under Valve Angle by Circor Intl Inc. The National Stock Number assigned to this part is 4820010840085, 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 3322F4B.