OEM Husqvarna MZ 54 Torque Hex Nut

OEM Husqvarna Part Number: 596240901 Replaces: 539976979 539130004 539130008 Fits Husqvarna: BE550 BZ6127 BZ6134 BZ7234 C248 CD48 CD52 CD61 CZ38 Fits Dixon: Black Bear ZTR34 ZTR44; DX148 DX152 DX161; Speed ZTR30 ZTR3016 Fits Jonsered: GT52F Z42F Z46R Z48F Z52XF Z54R; Poulan: 301ZX 461ZX 541ZX Fits RedMax: CZT52 CZT61 RZT42 RZT48 RZT54 RZT54x RZT61x; Bluebird: Previous/Substituted Part Numbers: 539130008 539976979 540099065