Value Collection MSC67701847X Taper Pin Size 4 Stainless

Product Description

The VALUE COLLECTION MSC67701847X is a Size 4 taper pin machined from Grade 303 18-8 stainless steel with a passivated finish. It features a small end diameter of 0.198 inches and a large end diameter of 0.25 inches, with an overall length of 2.5 inches. Taper pins are precision fasteners used to secure hubs, collars, and machine components to shafts, providing reliable alignment and load transfer. This part is installed by machinists, millwrights, and maintenance technicians working on mechanical assemblies requiring repeatable, removable positioning. The passivated finish improves corrosion resistance, making it suitable for wet or corrosive service environments.

This taper pin is appropriate for use in general industrial machinery, pump assemblies, conveyor systems, and other mechanical drive components where shaft-to-hub alignment must be maintained. It conforms to ANSI/ASME B18.8.2 dimensional standards, making it a direct fit in applications designed to that specification. It is suited for both light and moderate load applications where periodic disassembly and reassembly are required.

Key Features

• Size 4 taper pin with 0.198-inch small end diameter and 0.25-inch large end diameter
• 2.5-inch overall length with 2.5-inch pin length
• Grade 303, 18-8 stainless steel construction for corrosion resistance
• Passivated finish for enhanced surface protection in wet or harsh environments
• Conforms to ANSI/ASME B18.8.2 dimensional standards
• Diameter tolerance range from -0.0007 to +0.0013 inches for precise fit

Compatibility

Designed as a standard ANSI/ASME B18.8.2-compliant Size 4 taper pin replacement for mechanical assemblies requiring a 0.198-inch small end and 0.25-inch large end diameter in a 2.5-inch length.

Installation Notes

Taper pins are typically installed and removed by machinists or maintenance technicians using a pin punch and hammer or a taper pin reamer for hole preparation. Always de-energize and lock out the equipment before servicing shaft-mounted components. Ensure the taper reamed hole is clean and properly sized to the pin taper before driving the pin into place. Do not force an oversized pin into an undersized bore, as this can crack hubs or distort bores.