Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FR1-10-F-0-0.83 found under Valve Calibrated Flow by Vickers Inc. The National Stock Number assigned to this part is 4820014763387, 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 FR1-10-F-0-0.83.