Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11704 found under Valve Expansion by Beatrice Foods Co. The National Stock Number assigned to this part is 4820002697591, 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 11704.