Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BFN541-3RT found under Retainer Nut And Bo by Bristol Inc. The National Stock Number assigned to this part is 5340012516456, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BFN541-3RT.