Description
Overview:
This Genuine Husqvarna square nut is a tough, metal fastener used to secure components across a wide range of Husqvarna machines. Made from durable steel with a corrosion‐resistant finish, it provides a reliable hold where a four‐sided nut is preferred, such as in square recesses and slotted brackets. It is ideal for high‐vibration equipment like disc cutters, ensuring assemblies remain tight during demanding work. Designed for an exact OEM fit, it suits popular models including the Husqvarna K750 and K770, among many others. Identified by Husqvarna part number 503 22 65 04 (MPN 503226504), it helps maintain safe, stable performance on cutters, trimmers, blowers, chainsaws and pole pruners where consistent clamping force and repeatable servicing are essential.
Key Features:
- Genuine Husqvarna part for assured compatibility and quality
- Robust steel construction for long service life
- Corrosion‐resistant finish suited to outdoor and wet cutting environments
- Precise threads for secure tightening and consistent torque retention
- Square profile seats neatly in slots/recesses to resist rotation during tightening
- Reliable under vibration on disc cutters and other petrol or battery tools
- Helps keep guards, covers, handles and brackets firmly in place
- Easy to fit as a like‐for‐like OEM replacement
- Supports safe maintenance routines and repeatable assembly
- Widely used across Husqvarna cutters, trimmers, blowers, chainsaws and pole pruners
Typical Applications:
Used to fasten blade guards, shrouds, handles, covers, brackets and ancillary fittings on Husqvarna disc cutters and handheld tools. Suitable for repairs, overhauls and routine servicing where a square nut is required to lock into a housing or slot and resist spinning while tightening.
Also known as:
Square fixing nut, four‐sided nut, square hardware nut, square retention nut.
Fits Models:
130BTs, 150BF, 150BT, 170BF, 170BT, 180BF, 180BT, 223 L, 223 R, 223L, 223R, 225 L, 225 LD, 225B, 225HBV, 225L, 225LD, 225R, 225RD, 225RJ, 227 L, 227 LD, 227L, 227LD, 227R, 227RD, 227RJ, 232R, 232RD, 232RJ, 240, 240F, 240R, 240RJ, 245, 245R, 245RX, 250PS, 250R, 250RX, 252RX, 265RX, 266, 268K, 272K, 281, 281XP, 288, 3120K, 322 T, 322R, 322T, 323 C, 323 E, 323 Ex, 323 L, 323 LD, 323C, 323E, 323Ex, 323HD60, 323HE3, 323L, 323LD, 323P, 323R, 323RII, 323RJ, 323RJX, 325 CX, 325 LDx, 325 LXT, 325 Lx, 325 TX, 325CX, 325HD75 X-Series, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3 X-Series, 325HE4 X-Series, 325HS75 X-Series, 325HS99 X-Series, 325LDx, 325LXT, 325Lx, 325P, 325RDX, 325RJX, 325RX, 325RXT, 325TX, 326 AI 25, 326 C, 326 CX, 326 ES, 326 EX, 326 HD75 X-Series, 326 HDA55 X-Series, 326 L, 326 LDx, 326 LS, 326 Lx, 326AI25, 326C, 326CX, 326ES, 326EX, 326HD60 X-Series, 326HD75 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326HS75 X-Series, 326HS99 X-Series, 326L, 326LDx, 326LS, 326Lx, 326P, 326RJX, 326RX, 327 LDx, 327 Lx, 327HDA65 X-Series, 327HE3 X-Series, 327HE4 X-Series, 327LDx, 327Lx, 327P, 327P4, 327P5x, 327PT5S, 327RDX, 327RJX, 327RX, 333, 336, 336FR, 338XPT, 339XP, 340iBT, 343F, 343FR, 343R, 345FX, 345FXT, 345R, 345RX, 350BT, 355FRM, 355FX, 355FXT, 355RX, 356BF, 356BT, 360BT, 370BFS, 370BTS, 371K, 375K, 380BFS, 380BTS, 530BT, 535FBX, 545FXAT, 545FXTAT, 545RXTAT, 550iBTX, 550iBTX BT, 550iBTXBT, 555FRM, 555FX, 555FXT, 555RXT, 560BFS, 560BTS, 570BFS, 570BTS, 580BFS, 580BTS, K1 PACE, K1 PACE Rescue, K1250, K1250 Active, K1250 Rail, K1250Active, K1250Rail, K1270, K1270 I, K1270 II, K1270 Rail I, K1270 Rail II, K1270I, K1270II, K1270RailI, K1270RailII, K1PACE, K1PACERescue, K2500, K30, K3000 VAC, K3000VAC, K40, K4000, K540I, K650 Cut-n-Break, K650Cut-n-Break, K750, K760, K760 Cut-n-Break, K760 Cut-n-Break II, K760 II, K760 Rescue, K760Cut-n-Break, K760Cut-n-BreakII, K760II, K760Rescue, K770, K770 Dry Cut, K770 OilGuard, K770 Rescue, K770 VAC, K770DryCut, K770OilGuard, K770Rescue, K770VAC, K950, K950 Rescue, K960, K960 Rescue, K960Rescue, K970, K970 III, K970 Rescue III, K970 Ring III, K970III, K970RescueIII, K970RingIII, Saw Attachment
Alternate Part Numbers:
503 22 65-01, 503226504, 503226501
Product Specifications
| L&S Part No. | 503 22 65 04 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503226504 |
| Unit of Sale | 1 |
| Applications | 130BTs, 150BF, 150BT, 170BF, 170BT, 180BF, 180BT, 223 L, 223 R, 223L, 223R, 225 L, 225 LD, 225B, 225HBV, 225L, 225LD, 225R, 225RD, 225RJ, 227 L, 227 LD, 227L, 227LD, 227R, 227RD, 227RJ, 232R, 232RD, 232RJ, 240, 240F, 240R, 240RJ, 245, 245R, 245RX, 250PS, 250R, 250RX, 252RX, 265RX, 266, 268K, 272K, 281, 281XP, 288, 3120K, 322 T, 322R, 322T, 323 C, 323 E, 323 Ex, 323 L, 323 LD, 323C, 323E, 323Ex, 323HD60, 323HE3, 323L, 323LD, 323P, 323R, 323RII, 323RJ, 323RJX, 325 CX, 325 LDx, 325 LXT, 325 Lx, 325 TX, 325CX, 325HD75 X-Series, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3 X-Series, 325HE4 X-Series, 325HS75 X-Series, 325HS99 X-Series, 325LDx, 325LXT, 325Lx, 325P, 325RDX, 325RJX, 325RX, 325RXT, 325TX, 326 AI 25, 326 C, 326 CX, 326 ES, 326 EX, 326 HD75 X-Series, 326 HDA55 X-Series, 326 L, 326 LDx, 326 LS, 326 Lx, 326AI25, 326C, 326CX, 326ES, 326EX, 326HD60 X-Series, 326HD75 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326HS75 X-Series, 326HS99 X-Series, 326L, 326LDx, 326LS, 326Lx, 326P, 326RJX, 326RX, 327 LDx, 327 Lx, 327HDA65 X-Series, 327HE3 X-Series, 327HE4 X-Series, 327LDx, 327Lx, 327P, 327P4, 327P5x, 327PT5S, 327RDX, 327RJX, 327RX, 333, 336, 336FR, 338XPT, 339XP, 340iBT, 343F, 343FR, 343R, 345FX, 345FXT, 345R, 345RX, 350BT, 355FRM, 355FX, 355FXT, 355RX, 356BF, 356BT, 360BT, 370BFS, 370BTS, 371K, 375K, 380BFS, 380BTS, 530BT, 535FBX, 545FXAT, 545FXTAT, 545RXTAT, 550iBTX, 550iBTX BT, 550iBTXBT, 555FRM, 555FX, 555FXT, 555RXT, 560BFS, 560BTS, 570BFS, 570BTS, 580BFS, 580BTS, K1 PACE, K1 PACE Rescue, K1250, K1250 Active, K1250 Rail, K1250Active, K1250Rail, K1270, K1270 I, K1270 II, K1270 Rail I, K1270 Rail II, K1270I, K1270II, K1270RailI, K1270RailII, K1PACE, K1PACERescue, K2500, K30, K3000 VAC, K3000VAC, K40, K4000, K540I, K650 Cut-n-Break, K650Cut-n-Break, K750, K760, K760 Cut-n-Break, K760 Cut-n-Break II, K760 II, K760 Rescue, K760Cut-n-Break, K760Cut-n-BreakII, K760II, K760Rescue, K770, K770 Dry Cut, K770 OilGuard, K770 Rescue, K770 VAC, K770DryCut, K770OilGuard, K770Rescue, K770VAC, K950, K950 Rescue, K960, K960 Rescue, K960Rescue, K970, K970 III, K970 Rescue III, K970 Ring III, K970III, K970RescueIII, K970RingIII, Saw Attachment |
| Machine Type | Disc Cutters, Hedgetrimmers, Blower/Shredders, Chainsaws, Pole Pruners |
| Fits Brands | Husqvarna |
| Fits Models | K750 | K950 | K1250 | K760 | K770 | K1270, K1270 | K3000 VAC | K970 | 323HD60 | 323HE3 | 325HD75 X-SERIES | 325HDA55 X-SERIES | 325HDA65 X-SERIES | 325HE3 X-SERIES | 325HE4 X-SERIES | 325HS75 X-SERIES | 325HS99 X-SERIES | 326HD60 X-SERIES | 326 HD75 X-SERIES | 326 HDA55 X-SERIES | 326HE3 X-SERIES | 326HE4 X-SERIES | 326HS75 X-SERIES | 326HS99 X-SERIES | 327HDA65 X-SERIES | 327HE3 X-SERIES | 327HE4 X-SERIES | K4000 | K1250 Active | K1250 Rail | K2500 | K30 | K40 | K650 Cut-n-Break | K760 Cut-n-Break | K760 RESCUE | K950 Rescue | K960 | K960 Rescue | 250PS | 323P | 325P | 326P | 327PT5S | 327P | 250PS | Saw Attachment | 266 | 281 | 281XP | 288 | 333 | 336 | 338XPT | 339XP | 268K | 272K | 3120K | 371K | 223 L | 223 R | 225R | 225RD | 225RJ | 227RD | 227R | 227RJ | 232R | 232RD | 232RJ | 240 | 240F | 240R | 240RJ | 245 | 245R | 245RX | 250R | 250RX | 252RX | 265RX | 322R | 323R | 323RII | 323RJ | 323RJX | 325RDX | 325RJX | 325RX | 325RXT | 326RJX | 326RX | 327RDX | 327RJX | 327RX | 336FR | 343F | 343FR | 343R | 345FX | 345FXT | 345R | 345RX | 355FRM | 355FX | 355FXT | 355RX | 130BTs | 150BF | 150BT | 170BF | 170BT | 180BF | 180BT | 225B | 225HBV | 350BT | 356BF | 360BT | 370BFS | 370BTS | 380BFS | 380BTS | 530BT | 560BFS | 560BTS | 570BFS | 570BTS | 580BFS | 580BTS | 356BT | 535FBX | 545FXAT | 545RXTAT | 555FRM | 555FX | 555FXT | 555RXT | 545FXTAT | 223 L | 225 L | 225 LD | 227 L | 227 LD | 322 T | 323 C | 323 E | 323 Ex | 323 L | 323 LD | 325 CX | 325 LDx | 325 Lx | 325 LXT | 325 TX | 326 C | 326 CX | 326 ES | 326 EX | 326 L | 326 LDx | 326 LS | 326 Lx | 327 LDx | 327 Lx | 326 AI 25 | 340iBT | 550iBTX | K1 PACE | K1 PACE RESCUE | K540I | 550iBTX BT | K1270 I | K1270 II | K1270 II Smartguard | K1270 Rail I | K1270 Rail II | K760 Cut-n-Break II | K760 II | K770 Dry Cut | K770 OilGuard | K770 Rescue | K770 SmartGuard | K770 VAC | K970 Rescue III | K970 Ring III | K970 SmartGuard | 375K | K970 III | 327P4 | 327P5x |
