Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BOF22104 found under Valve Calibrated Flow by Marshall Land Systems Limited. The National Stock Number assigned to this part is 4820011597765, 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 BOF22104.