Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1949-AA-6091 MOD found under Valve Plug by Wheeler Bros Inc. The National Stock Number assigned to this part is 4820011313685, 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 1949-AA-6091 MOD.