Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FC11596 found under Valve Bleeder Hydraulic System by Metadure Parts And Sales Inc. The National Stock Number assigned to this part is 4820007373260, 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 FC11596.