Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M370B8 found under Insert Flexible Coupling by Applied Industrial Technologies. The National Stock Number assigned to this part is 3010016213370, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M370B8.