National Marker N180208 Steel Key Stock 0.5x12 in

Product Description

The NATIONAL MARKER N180208 is a steel key stock measuring 0.5 inches wide by 12 inches long, used to secure rotating components such as gears, pulleys, and sprockets to shafts in mechanical and industrial assemblies. Machined from open hearth steel, this key stock provides reliable shear resistance and dimensional stability under load. It is a standard stock item for maintenance technicians, millwrights, and industrial mechanics who need to fabricate or replace keys during equipment repair or installation. The part ships as a single piece and weighs approximately 0.857 pounds.

Key stock is a common consumable in mechanical power transmission work. This 0.5-inch by 12-inch bar is suited for use in pumps, motors, conveyor drives, and general industrial machinery where a keyed shaft connection is required. The 12-inch length allows technicians to cut the stock to a specific key length using a bandsaw or cold saw, making it adaptable to a variety of shaft and hub dimensions encountered in the field.

Key Features

• Open hearth steel construction provides strength and shear resistance in power transmission applications
• 0.5-inch width by 12-inch length allows field cutting to required key dimensions
• Sold as individual piece for targeted repair or replacement use
• Consistent dimensional tolerances support proper keyway seating

Compatibility

Designed as a standard key stock replacement for mechanical shaft-and-hub assemblies requiring a 0.5-inch key width, including pumps, motors, and drive components with matching keyway dimensions.

Installation Notes

Key stock installation is typically performed by millwrights or mechanical maintenance technicians. Always de-energize and lock out the equipment before servicing any shaft connection. Cut the stock to length using appropriate metal cutting tools and verify fit within the keyway before pressing or driving the key into place. Follow applicable ANSI or OEM specifications for key fit tolerances when replacing a worn or sheared key.

Technical Specifications

• Material: Open Hearth Steel
• Width: 0.5 inches
• Length: 12 inches
• Weight: 0.857 pounds
• Sold As: Each
• UPC: 00038613180208

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N180208