Value Collection MSC67550129X Size 3 Steel Taper Pin

Product Description

The VALUE COLLECTION MSC67550129X is a Size 3 steel taper pin designed for precise alignment and fastening in mechanical assemblies. Made from C-12L14 free-machining steel in an uncoated finish, this pin measures 0.1462 inches at the small end and 0.219 inches at the large end, with an overall length of 3.5 inches. Taper pins are driven into reamed, tapered holes to lock components such as hubs, collars, and levers onto shafts. The self-locking taper geometry resists loosening under vibration and lateral load, making this pin a reliable choice for machine shop, maintenance, and light industrial applications.

This taper pin is suited for general industrial and mechanical maintenance work where shaft-to-hub connections, gear assemblies, or rotating component alignment require a secure, removable fastener. It is installed by machinists, millwrights, and maintenance technicians working on pumps, motors, conveyors, and similar rotating equipment. The 3.5-inch pin length accommodates moderate hub widths where a standard Size 3 taper is specified by design or OEM requirement.

Key Features

• C-12L14 free-machining steel construction for consistent dimensional accuracy
• Size 3 taper conforms to ANSI/ASME B18.8.2 standards
• Small end diameter of 0.1462 inches with tight tolerances (-0.0007 / +0.0013 inches)
• Large end diameter of 0.219 inches for reliable locking engagement
• Uncoated finish suitable for indoor and controlled-environment mechanical assemblies
• 3.5-inch overall length fits moderate hub and collar widths

Compatibility

Designed as an OEM-style replacement or standard-service taper pin for mechanical assemblies requiring an ANSI/ASME B18.8.2 Size 3 taper pin specification.

Installation Notes

Taper pins are installed by machinists or millwrights using a properly reamed taper hole sized to ANSI/ASME B18.8.2 specifications for Size 3 pins. De-energize and lock out all rotating equipment before pin installation or removal. Drive the pin in using a pin punch and hammer, and remove with a drift punch from the small end. Do not force an oversized pin into an undersized hole, as this can crack the hub or shaft.