Williams Comfort Products 474 Adjustable Hook Spanner

Product Description

The WILLIAMS COMFORT PRODUCTS 474 is an adjustable hook spanner wrench designed to engage slotted or notched collars, lock rings, and bearing retainer nuts across a working range of 2 to 4.75 inches. This type of spanner is a standard hand tool in mechanical trades where ring nuts and threaded collars require controlled torque without damaging adjacent surfaces. The adjustable design covers multiple sizes in a single tool, reducing the number of dedicated spanners a technician needs to carry on a service call.

The 474 is suited for HVAC, plumbing, and general mechanical applications where spanner-style fasteners appear on pump housings, motor end caps, bearing retainers, and similar assemblies. Technicians working on circulator pumps, fan assemblies, or shaft-mounted components will encounter this fastener type regularly. The 2 to 4.75 inch adjustment range covers the most common retainer sizes found in residential and light commercial equipment.

Key Features

• Adjustable range of 2 to 4.75 inches covers multiple collar and ring nut sizes
• Hook-style jaw engages slotted or notched fasteners securely
• Single-tool solution reduces the need for multiple fixed-size spanners
• Sold individually as a single unit

Compatibility

Designed for use with slotted collars, lock rings, and bearing retainer nuts measuring between 2 and 4.75 inches in diameter, typical of residential and light commercial mechanical assemblies.

Installation Notes

This tool is used by HVAC technicians, plumbers, and mechanical service professionals. Always de-energize and lock out equipment before disassembling rotating assemblies or pump components. Ensure the hook jaw is fully seated in the spanner slot before applying torque to avoid slipping and surface damage. Follow applicable safety and equipment-manufacturer service procedures when servicing pump or motor assemblies.

Technical Specifications

• Adjustment Range: 2 to 4.75 inches
• Weight: 0.97 pounds
• Sold As: Each
• UPC: 662459104182

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: 474