Williams Comfort Products 474B Adjustable Hook Spanner

Product Description

The WILLIAMS COMFORT PRODUCTS 474B is an adjustable hook spanner designed for tightening and loosening spanner nuts, retaining rings, and lock collars across a range of industrial and mechanical applications. The 474B covers a span range of 6.125 inches to 8.75 inches, giving technicians a single tool capable of handling multiple fastener sizes within that range. Weighing 1.23 pounds, it offers enough heft for controlled torque without excessive fatigue during repeated use. This tool is suited for use by plumbers, pipefitters, millwrights, and mechanical technicians who regularly work with large-diameter threaded components.

The 474B is appropriate for use in mechanical rooms, pump installations, and general industrial maintenance where spanner-style fasteners are common. Its adjustable design reduces the need to carry multiple fixed-size spanners when servicing equipment with varying nut diameters within the 6.125 to 8.75 inch range. It is well-suited for trade and industrial environments where accurate fit and reliable grip on spanner nuts are essential to proper assembly and disassembly procedures.

Key Features

• Adjustable span range from 6.125 inches to 8.75 inches covers multiple fastener sizes with one tool
• Lightweight at 1.23 pounds for reduced fatigue during extended use
• Hook spanner design provides positive engagement on slotted or notched retaining nuts
• Single-piece tool with no loose parts to misplace during service

Compatibility

Designed for use with spanner nuts, retaining rings, and lock collars in the 6.125 to 8.75 inch diameter range, typical of large pump assemblies, bearing housings, and industrial mechanical components.

Installation Notes

This tool is used by licensed plumbers, pipefitters, and mechanical technicians during assembly and disassembly of spanner-nut fastened components. Ensure the equipment being serviced is fully de-energized and depressurized before using this tool on any mechanical assembly. Engage the hook fully into the spanner nut slot before applying force to prevent slipping and fastener damage. Follow applicable OSHA hand-tool safety guidelines when using spanners in confined or overhead work areas.

Technical Specifications

• Span Range (Minimum): 6.125 inches
• Span Range (Maximum): 8.75 inches
• Weight: 1.23 pounds
• Unit of Measure: Each

Standard Information

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