Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S308-64-40282B found under Pointer Knob Assy by Radio City Products Co Inc. The National Stock Number assigned to this part is 6625006521233, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S308-64-40282B.