Manufacturer: Hustler
Part Number: 606943
Hex lock nut (NT = nut, HX = hex), 9/16-18 thread. NLG5 indicates a nylon-insert lock nut (nyloc) in Grade 5.
Commonly used on Hustler Dash and Hustler Raptor / Raptor Limited series mower decks, shown in the Deck Pulleys & Spindles diagram.
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