Husqvarna Flanged Nylock Nut 1/2-13 OEM #521991102

This part replaces obsolete part #: 521991101.

Compatibility
This part is compatible with the following machines:

Husqvarna
PZ6034FX Lawn Mower
966656603 (P-ZT61) Collection System
966656602 (P-ZT52) Collection System
966656601 (P-ZT48) Collection System
967322401 (2014-06) Collection System
966656604 (2013-03) Collection System, P-Zt
967322701 (2014-06) Collection System
967024401 (2012-02) Collection System, Pz Dfs
967322601 (2014-06) Collection System
967322501 (2014-06) Collection System
967004601 (966407102) (2012-10) Collection System, P-Zt Dfs
PZ61 (966555402) (2010-03) Cutting Deck Zero Turn
FD60 (966555302) (2013-08) Zero Turn Cutting Deck
FD72 (966555303) (2013-08) Zero Turn Cutting Deck
FD61 (966613901) (2012-06) Zero Turn Cutting Deck
FD52 (966613801) (2012-06) Zero Turn Cutting Deck
FD48 (966613802) (2012-06) Zero Turn Cutting Deck
CD61 (966686701) (2010-12) Zero Turn Cutting Deck
FD54 (966555301) (2013-08) Zero Turn Cutting Deck
FD60 (966683002) (2010-12) Zero Turn Cutting Deck
FD54 (966683001) (2010-12) Zero Turn Cutting Deck
CD52 (967019201) (2012-03) Zero Turn Cutting Deck
WH3616 (966638601) (2010-09) Lawn Mower: Commercial Walk Behind
WH4818 (966638601) (2010-09) Lawn Mower: Commercial Walk Behind
WH5218 (966638601) (2010-09) Lawn Mower: Commercial Walk Behind
WHF3617 (2009-09) 966947008 Lawn Mower: Commercial Walk Behind
WHF5223 (2009-09) 966947006 Lawn Mower: Commercial Walk Behind
WHF6123 (2009-09) 966947007 Lawn Mower: Commercial Walk Behind
ST 224P (96193012200) (2015-05) Snow Blower
ST 227P (96193009705) (2018-04) Snow Blower
ST 227P (96193009704) (2017-04) Snow Blower
ST 227P (96193009703) (2016-05) Snow Blower
ST 227P (96193009702) (2015-05) Snow Blower
ST227P (96193009701) (2014-06) Snow Blower
ST 227P (96191008804) (2018-03) Snow Blower
ST 227P (96191008803) (2017-05) Snow Blower
ST 227P (96191008802) (2016-04) Snow Blower
ST 227P (96191008801) (2015-05) Snow Blower
ST227P (96191008800) (2014-06) Snow Blower
ST 230P (96193010104) (2017-04) Snow Blower
ST 230P (96193010103) (2016-04) Snow Blower
ST 230P (96193010102) (2015-04) Snow Blower
ST 230P (96193010101) (2014-06) Snow Blower
ST 230P (96191009004) (2018-03) Snow Blower
ST 230P (96191009003) (2017-05) Snow Blower
ST 230P (96191009002) (2016-04) Snow Blower
ST 230P (96191009001) (2015-06) Snow Blower
ST 230P (96191009000) (2014-06) Snow Blower
ST 230P (96191001500) (2018-04) Snow Blower
ST 324 (96193012600) (2018-03) Snow Blower
ST 324 (96193012300) (2018-03) Snow Blower
ST327 (96193012400) (2018-03) Snow Blower
ST330 (961930012500) (2018-03) Snow Blower
ST 224 (96193009605) (2018-03) Snow Blower
ST 224 (96193009604) (2017-04) Snow Blower
ST 224 (96193009603) (2016-04) Snow Blower
ST 224 (96193009602) (2015-05) Snow Blower
ST224 (96193009601) (2014-06) Snow Blower
ST 224 (96191008704) (2018-03) Snow Blower
ST 224 (96191008703) (2017-05) Snow Blower
ST 224 (96191008702) (2016-04) Snow Blower
ST 224 (96191008701) (2015-05) Snow Blower
ST224 (96191008700) (2014-06) Snow Blower
PZ 72 (966614702-00) (2016-12) Zero Turn: Commercial
PZ 72 (966614701-04) (2016-12) Zero Turn: Commercial
PZ 7234FX (966614701-00) (2011-01) Zero Turn: Commercial
PZ 6034FX ZT (966614601-01) (2011-11) Zero Turn: Commercial
PZ 6034FX ZT (966061301-00) (2010-01) Zero Turn: Commercial
PZ 7234FX (2009-08) Zero Turn: Commercial
PZ 72 (966614701-03) (2014-05) Zero Turn: Commercial
P-ZT26 CE (966791901) (2013-05) Zero Turn: Commercial
P-ZT48 CA (966663803-00) (2015-06) Zero Turn: Commercial
P-ZT48 CA (966663802-02) (2016-11) Zero Turn: Commercial
P-ZT48 CA (966663802-00) (2012-08) Zero Turn: Commercial
TS 354D (96045006600) (2017-08) Tractor
TS 354D (96043024000) (2017-10) Tractor
TS 354XD (96043024500) (2017-10) Tractor
TS 354XD (96041041900) (2018-03) Tractor
PZ 5426 FX (966614001-01) (2014-04) Zero Turn: Commercial
PZ 6029 D (966476701) (2010-03) Zero Turn: Commercial
Z 548 (967669501-00) (2017-09) Zero Turn: Commercial
Z 554 (967844301-00) (2017-09) Zero Turn: Commercial
Z 554 (967669601-00) (2017-09) Zero Turn: Commercial
Z 554X (967678701-00) (2017-09) Zero Turn: Commercial
Z 554X (967678601-00) (2017-09) Zero Turn: Commercial
Z 560 (967678501-00) (2017-09) Zero Turn: Commercial
Z 560 (967678401-00) (2017-09) Zero Turn: Commercial
Z 560X (967678901-00) (2017-09) Zero Turn: Commercial
Z 560X (967678802-00) (2017-09) Zero Turn: Commercial
Z 560X (967678801-00) (2017-09) Zero Turn: Commercial
Z 560X (967669701-00) (2017-09) Zero Turn: Commercial
Z 572X (967679001-00) (2017-09) Zero Turn: Commercial
Z 572X (967669801-00) (2017-09) Zero Turn: Commercial
Z 560X (967669702-00) (2018-01) Zero Turn: Commercial
M-ZT52 (967844001-00) (2017-12) Zero Turn: Commercial
M-ZT52 (967177011-00) (2015-06) Zero Turn: Commercial
M-ZT52 (967177006-01) (2016-11) Zero Turn: Commercial
M-ZT61 (967844201-00) (2017-12) Zero Turn: Commercial
M-ZT61 (967177008-01) (2016-11) Zero Turn: Commercial
M-ZT61 (967177007-01) (2016-11) Zero Turn: Commercial
M-ZT61 (967045501-00) (2016-12) Zero Turn: Commercial
PZ 54 (967004002-00) (2013-01) Zero Turn: Commercial
PZ 54 (967004001-00) (2013-01) Zero Turn: Commercial
PZ 54 (966614004-00) (2016-12) Zero Turn: Commercial
PZ 54 (966614003-02) (2016-12) Zero Turn: Commercial
PZ 54 (966614003-01) (2013-01) Zero Turn: Commercial
PZ 60 (967045601-00) (2015-09) Zero Turn: Commercial
PZ 60 (966614302-04) (2016-12) Zero Turn: Commercial
PZ 60 (966614401-04) (2016-12) Zero Turn: Commercial
PZ 60 (966614303-00) (2016-12) Zero Turn: Commercial
PZ 60 (966614301-04) (2016-12) Zero Turn: Commercial
MZ 48 (967262801-00) (2016-11) Zero Turn: Consumer
MZ 48 (967262701-00) (2016-11) Zero Turn: Consumer
MZ 52 (967277406-00) (2015-04) Zero Turn: Consumer
MZ 52 (967277404-01) (2016-12) Zero Turn: Consumer
MZ 52 (967277404-00) (2013-08) Zero Turn: Consumer
MZ 52 (967277402-01) (2015-04) Zero Turn: Consumer
MZ 52 (967277402-00) (2013-07) Zero Turn: Consumer
MZ 52 (967277401-02) (2016-11) Zero Turn: Consumer
MZ 52 (967277401-01) (2013-07) Zero Turn: Consumer
MZ 52 (967277401-00) (2013-07) Zero Turn: Consumer
MZ 54 (967334101-00) (2016-12) Zero Turn: Consumer
MZ5424SR (967003902-01) (2013-01) Zero Turn: Consumer
MZ 61 (967277502-01) (2016-11) Zero Turn: Consumer
PZ29 (966616601-00) (2011-02) Zero Turn: Commercial
PZ 5426 FX (2009-08) Zero Turn: Commercial
PZ 60 (966614401-03) (2013-08) Zero Turn: Commercial
PZ 6029 FX (966614301-02) (2012-04) Zero Turn: Commercial
PZ 6029 FX (966614301-00) (2011-01) Zero Turn: Commercial
PZ 6029 FX (2009-08) Zero Turn: Commercial
PZ 6029 PFX (966062201-00) (2009-08) Zero Turn: Commercial
PZ 6030 CV (966614101-00) (2011-01) Zero Turn: Commercial
PZ 6030 CV (966061101-00) (2009-08) Zero Turn: Commercial
V548 (96767250100) (2017-11) Zero Turn: Commercial
V554 (96767260100) (2017-11) Zero Turn: Commercial
MZ 5226 (965879901) (2010-03) Zero Turn: Consumer
PZ29 (966554801-01) (2015-02) Zero Turn: Commercial
PZ 6029 D (966476701) (2012-02) Zero Turn: Commercial
P-ZT5224FS (966613401-01) (2012-11) Zero Turn: Commercial
P-ZT6126 FS (966613501) (2011-11) Zero Turn: Commercial
M-ZT52 (967177006-00) (2013-08) Zero Turn: Commercial

Jonsered
ST2361 – 96191009400 (2014-07) Snow Blower
ST2361 – 96191009401 (2015-07) Snow Blower
ST2361 – 96192008101 (2015-08) Snow Blower
ST2368 EP – 96191009201 (2015-07) Snow Blower
ST2368 EP – 96192007601 (2014-08) Snow Blower
ST2368 EP – 96192007602 (2015-06) Snow Blower
ST2376 EP – 96191009300 (2014-07) Snow Blower
ST2376 EP – 96192007701 (2014-08) Snow Blower
Z52XF – 967328101 (2015-01) Zero Turn: Consumer