Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B15811 found under Filtering Disk Flui by Falls Filtration Technologies In. The National Stock Number assigned to this part is 2945004393762, and the Federal Supply Class is 2945 Engine Air And Oil Filters Cleaners Aircraft Prime Moving. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B15811.