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#25 Chain Sprocket - Nylon Series #FCN-A3-21

Aluminum hubs are available for greater strength on sprockets with 16 teeth and larger, add A to the end of the catalog number.

Click here for 3D Image for FCN-A3

Price: $10.87

Stock: Out of Stock - Will Ship: 06/04/2026

Bore 1/2

Teeth 21

Outside Diameter 1.813

Pitch Diameter 1.677

Root Diameter 1.547

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