Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HM-11B found under Magneto Ignition by Rentfrowincorporated. The National Stock Number assigned to this part is 2920014553720, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HM-11B.