Nut for 681623 NH Disc Mower Blade Bolt

433626 Nut for 681623 NH Disc Mower Blade Bolt

The 697550 / 433626 Blade Nut is a replacement lock nut designed to secure the 681623 disc mower blade bolt on New Holland disc mower assemblies. This nut works with the blade bolt to hold the cutting blade firmly in place on the mower disc, helping maintain safe, stable blade retention during operation. Built to fit the original hardware specifications, it features an M12 x 1.75 thread and is commonly used in New Holland hay equipment where reliable blade fastening is critical.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: 697550
• Alternate Number: 433626
• Product Type: Disc mower blade bolt nut / lock nut
• Thread Size: M12 x 1.75
• Function: Secures disc mower blades to cutter disc assembly
• Compatible Bolt: 681623 blade bolt
• Application: Disc mower blade mounting hardware
• Construction: Hardened nut designed for high-speed mower disc operation
• Typical Hardware Set: Used with 697552 blade bolt and disc mower blades such as 784220 / 784221

Compatible Equipment

• New Holland Disc Mowers: 408, 411, 412, 415, 442, 452, 462, 463, 465

Ideal For

• Replacing worn or damaged blade nuts on New Holland disc mowers
• Maintaining secure blade retention in high-speed mower discs
• Farm maintenance shops stocking spare blade hardware during hay season
• Pairing with 681623 blade bolts when replacing mower blades
• Anyone who prefers their mower blades tight on the disc instead of sightseeing across the pasture.