Description
Overview:
The Husqvarna Nut 731 23 20-51 is a genuine Husqvarna fastening component designed for secure assembly on heavy‐duty equipment. Made from strong steel with a corrosion‐resistant plated finish, this hex nut provides dependable clamping under site and workshop conditions. It is used across Husqvarna disc cutters and floor saws, including the KV03 and FS400, and is also specified on a wide range of Husqvarna Rider and ProFlex machines. Use it to replace worn, damaged, or missing fixings to maintain safety and performance. Genuine part status helps ensure correct fit and compatibility when used in accordance with the machine's service manual and torque guidance. Part reference: 731 23 20-51.
Key Features:
- Genuine Husqvarna part for assured fit and specification on listed machines
- Durable steel construction with a protective plated finish for long service life
- Precision hex form for positive tool grip and straightforward tightening
- Suitable for high‐vibration environments when installed to the correct torque
- Direct replacement to restore secure fastening and equipment integrity
- Compatible with multiple Husqvarna cutters, saws, Riders and ProFlex models
- Helps reduce downtime by enabling quick, routine maintenance
- Manufactured to Husqvarna quality standards for reliability on site
Typical Applications:
General fastening on Husqvarna disc cutters, floor saws, and Rider mowers where a robust nut is required. Commonly used during blade service, guard and chassis assembly, handle and linkage fastening, and other structural fixings. Ideal as a like‐for‐like replacement during repairs, overhauls, and preventative maintenance.
Also known as:
Hex nut, fastening nut, cutter nut, floor saw nut, machine nut, fixing nut, steel nut, replacement nut, hardware nut, general fastener.
Fits Models:
FS305, FS309, FS3500, FS3500 E, FS3500E, FS400, FS400 LV, FS400LV, FS410, FS410 D, FS410D, FS413, FS4800, FS5000, FS513, FS520, FS524, FS700, FS700 EX, FS700EX, KV03, LC 148VE, LC148VE, P 524EFI, P 524EFI Rider, P520, P524, P524 Rider, P524EFI, P525 D, P525 D Riders, P525D, PR1200, PR14, PR14 Rider, PR15, PR15 Rider, PR17, PR17 AWD, PR17 AWD Rider, PR17 Rider, PR17AWD, PR18, PR18 AWD, PR18 AWD Rider, PR18 Rider, PR18AWD, PR20, PR21, PT26 D, PT26 D Rider, PT26D, Proflex 1200, Proflex 1200 Rider, Proflex 18, Proflex 18 Rider, Proflex 20, Proflex 20 Rider, Proflex 21, Proflex 21 AWD, Proflex 21 AWD Rider, Proflex 21 Rider, Proflex 21AWD, R111, R111 B, R111 B Rider, R111 B5, R111 B5 Rider, R111B, R111B5, R112, R112 C, R112 C Rider, R112 C5, R112 C5 Rider, R112C, R112C5, R115, R115 B, R115 B Rider, R115 C, R115 C Rider, R115B, R115C, R13 C5, R13 C5 Rider, R13C5, R213 C, R213 C Rider, R213C, R214, R214 T, R214 T AWD, R214 T AWD Rider, R214 T Rider, R214 TC, R214 TC Rider, R214T, R214TAWD, R214TC, R215, R215 TX, R215 TX Rider, R215TX, R216, R216 AWD, R216 AWD Rider, R216 Rider, R216 T AWD, R216 T AWD Rider, R216AWD, R216TAWD, R316 T, R316 T AWD, R316 T AWD Rider, R316 T Rider, R316 TXs AWD, R316 TXs AWD Rider, R316 Ts AWD, R316 Ts AWD Rider, R316T, R316TAWD, R316TXsAWD, R316TsAWD, R318, R318 Rider, R320 AWD, R320 AWD Rider, R320AWD, R322T AWD, R322T AWD Rider, R322TAWD, R418 TS AWD, R418 TS AWD Rider, R418 Ts, R418 Ts Rider, R418TSAWD, R418Ts, R422 Ts, R422 Ts AWD, R422 Ts AWD Rider, R422 Ts Rider, R422Ts, R422TsAWD, RC 318T, RC 318T Rider, RC 320Ts AWD, RC 320Ts AWD Rider, RC318T, RC320TsAWD, RIDER11, RIDER12, RIDER13, RIDER15, RIDER16, RIDER18, Rider 1030, Rider 11, Rider 11 BIO, Rider 11 C, Rider 11 R, Rider 11BIO, Rider 11C, Rider 11R, Rider 12, Rider 1200, Rider 13, Rider 13 AWD, Rider 13 BIO, Rider 13 C, Rider 13 R, Rider 13AWD, Rider 13BIO, Rider 13C, Rider 13R, Rider 15, Rider 15 C, Rider 15 T, Rider 15 T AWD, Rider 155, Rider 155 AWD, Rider 155AWD, Rider 15C, Rider 15T, Rider 15TAWD, Rider 15V2, Rider 15V2 AWD, Rider 15V2AWD, Rider 16, Rider 16 C, Rider 16 C AWD, Rider 16 H, Rider 16C, Rider 16CAWD, Rider 16H, Rider 175, Rider 175 AWD, Rider 175AWD, Rider 18, Rider 18 AWD, Rider 18AWD, Rider 850, Rider 850 HST, Rider 850HST, Rider 970, Rider 970 HST, Rider 970HST, Rider PRO 18, Rider PRO18
Alternate Part Numbers:
731 23 20-51, 731 23 20-01, 731232001, 731232051
Product Specifications
| L&S Part No. | 731 23 20 51 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 731232001 |
| Unit of Sale | 1 |
| Applications | FS305, FS309, FS3500, FS3500 E, FS3500E, FS400, FS400 LV, FS400LV, FS410, FS410 D, FS410D, FS413, FS4800, FS5000, FS513, FS520, FS524, FS700, FS700 EX, FS700EX, KV03, LC 148VE, LC148VE, P 524EFI, P 524EFI Rider, P520, P524, P524 Rider, P524EFI, P525 D, P525 D Riders, P525D, PR1200, PR14, PR14 Rider, PR15, PR15 Rider, PR17, PR17 AWD, PR17 AWD Rider, PR17 Rider, PR17AWD, PR18, PR18 AWD, PR18 AWD Rider, PR18 Rider, PR18AWD, PR20, PR21, PT26 D, PT26 D Rider, PT26D, Proflex 1200, Proflex 1200 Rider, Proflex 18, Proflex 18 Rider, Proflex 20, Proflex 20 Rider, Proflex 21, Proflex 21 AWD, Proflex 21 AWD Rider, Proflex 21 Rider, Proflex 21AWD, R111, R111 B, R111 B Rider, R111 B5, R111 B5 Rider, R111B, R111B5, R112, R112 C, R112 C Rider, R112 C5, R112 C5 Rider, R112C, R112C5, R115, R115 B, R115 B Rider, R115 C, R115 C Rider, R115B, R115C, R13 C5, R13 C5 Rider, R13C5, R213 C, R213 C Rider, R213C, R214, R214 T, R214 T AWD, R214 T AWD Rider, R214 T Rider, R214 TC, R214 TC Rider, R214T, R214TAWD, R214TC, R215, R215 TX, R215 TX Rider, R215TX, R216, R216 AWD, R216 AWD Rider, R216 Rider, R216 T AWD, R216 T AWD Rider, R216AWD, R216TAWD, R316 T, R316 T AWD, R316 T AWD Rider, R316 T Rider, R316 TXs AWD, R316 TXs AWD Rider, R316 Ts AWD, R316 Ts AWD Rider, R316T, R316TAWD, R316TXsAWD, R316TsAWD, R318, R318 Rider, R320 AWD, R320 AWD Rider, R320AWD, R322T AWD, R322T AWD Rider, R322TAWD, R418 TS AWD, R418 TS AWD Rider, R418 Ts, R418 Ts Rider, R418TSAWD, R418Ts, R422 Ts, R422 Ts AWD, R422 Ts AWD Rider, R422 Ts Rider, R422Ts, R422TsAWD, RC 318T, RC 318T Rider, RC 320Ts AWD, RC 320Ts AWD Rider, RC318T, RC320TsAWD, RIDER11, RIDER12, RIDER13, RIDER15, RIDER16, RIDER18, Rider 1030, Rider 11, Rider 11 BIO, Rider 11 C, Rider 11 R, Rider 11BIO, Rider 11C, Rider 11R, Rider 12, Rider 1200, Rider 13, Rider 13 AWD, Rider 13 BIO, Rider 13 C, Rider 13 R, Rider 13AWD, Rider 13BIO, Rider 13C, Rider 13R, Rider 15, Rider 15 C, Rider 15 T, Rider 15 T AWD, Rider 155, Rider 155 AWD, Rider 155AWD, Rider 15C, Rider 15T, Rider 15TAWD, Rider 15V2, Rider 15V2 AWD, Rider 15V2AWD, Rider 16, Rider 16 C, Rider 16 C AWD, Rider 16 H, Rider 16C, Rider 16CAWD, Rider 16H, Rider 175, Rider 175 AWD, Rider 175AWD, Rider 18, Rider 18 AWD, Rider 18AWD, Rider 850, Rider 850 HST, Rider 850HST, Rider 970, Rider 970 HST, Rider 970HST, Rider PRO 18, Rider PRO18 |
| Machine Type | Disc Cutters, Floor Saws |
| Fits Brands | Husqvarna |
| Fits Models | FS400 | P 524EFI Rider | P524 Rider | P525 D Riders | PR14 Rider | PR15 Rider | PR17 Rider | PR17 AWD Rider | PR18 Rider | PR18 AWD Rider | PROFLEX 1200 Rider | PROFLEX 18 Rider | PROFLEX 20 Rider | PROFLEX 21 Rider | PROFLEX 21 AWD Rider | PT26 D Rider | R111 B Rider | R111 B5 Rider | R112 C Rider | R112 C5 Rider | R115 B Rider | R115 C Rider | R13 C5 Rider | R213 C Rider | R214 T Rider | R214 T AWD Rider | R214 TC Rider | R215 TX Rider | R216 Rider | R216 AWD Rider | R216 T AWD Rider | R316 T Rider | R316 T AWD Rider | R316 Ts AWD Rider | R316 TXs AWD Rider | R318 Rider | R320 AWD Rider | R322T AWD Rider | R418 Ts Rider | R418 TS AWD Rider | R422 Ts Rider | R422 Ts AWD Rider | RC 318T Rider | RC 320Ts AWD Rider | RIDER 1030 | RIDER 11 | RIDER 11 BIO | RIDER 11 C | RIDER 11 R | RIDER 1200 | RIDER 13 | RIDER 13 AWD | RIDER 13 BIO | RIDER 13 C | RIDER 13 R | RIDER 15 C | RIDER 15 T | RIDER 15 T AWD | RIDER 155 | RIDER 155 AWD | RIDER 15V2 | RIDER 15V2 AWD | RIDER 16 | RIDER 16 C | RIDER 16 C AWD | RIDER 16 H | RIDER 175 | RIDER 175 AWD | RIDER 18 | RIDER 18 AWD | RIDER 850 | RIDER 850 HST | RIDER 970 | RIDER 970 HST | RIDER PRO 18 | FS305 | FS309 | FS3500 E | FS400 LV | FS410 D | FS413 | FS4800 | FS513, FS520, FS524 | FS700 EX | LC 148VE |
