Engines 5/16-24 Prop Nut (.61-1.20) by O.S.
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This product was added to our catalog on June 17, 2009.This a replacement O.S. Engines Propeller Nut, and is intended for use with O.S. engines that have a 5/16-24 crank thread.
NOTE: This part may be compatible with other O.S. engines. Please check your owner's manual and cross reference the part number to verify that this is the correct part for your engine.