This is a Haban HA60MP-5 Series D 60" Mower Deck Blade Bolt and Washer. We know the Mower Deck fits a Case IH 235H Tractor, unsure of what other models it may fit, or what parts are interchangeable with the 60" haban mower decks for cub cadets. Serial Number was 287186.   (BW3-floor)