Value Collection 251139PR Oversized Dowel Pin 3/16x1-1/4 in

Product Description

The VALUE COLLECTION 251139PR is a military specification oversized dowel pin designed for precise alignment and fastening applications in industrial and mechanical assemblies. Manufactured from alloy steel with a hardness rating of 50-58 HRC, this pin delivers the wear resistance and shear strength required in demanding environments. It measures 3/16 inch in diameter with a 1-1/4 inch overall length and features one beveled end and one rounded end. With a double-shear breaking strength of 7,200 pounds and a tight diameter tolerance of 0.0010 inch, it is suited for applications where positional accuracy is critical. Licensed machinists, millwrights, and maintenance technicians are the typical installers.

This oversized dowel pin is used in precision fixturing, tooling plates, machine frames, and structural assemblies where standard-tolerance pins are insufficient. The military specification designation and ASME B18.8.2 compliance make it appropriate for defense, aerospace, and heavy industrial manufacturing contexts. The oversized diameter tolerance ensures a controlled interference fit in bored holes, maintaining alignment under repeated loading cycles. It is sold individually, with a minimum order quantity of 100 pieces per order.

Key Features

• Alloy steel construction with 50-58 HRC hardness for high wear and shear resistance
• Double-shear breaking strength of 7,200 pounds
• Diameter tolerance of 0.0010 inch for controlled interference fits
• One beveled end and one rounded end for guided insertion
• Meets ASME B18.8.2 fastener standard and military specification requirements
• UNSPSC Code 31163203 for procurement and catalog classification

Compatibility

Designed as an OEM-style replacement or standard fitment for precision alignment applications requiring ASME B18.8.2 compliant military specification oversized dowel pins in alloy steel.

Installation Notes

Installation of hardened dowel pins typically requires a hydraulic or arbor press to achieve the proper interference fit; never drive hardened pins with a hammer, as this can damage the bore or fracture the pin. Ensure mating bores are reamed to the correct oversized tolerance before installation. De-energize and lock out all equipment before performing any alignment or fastener work on live machinery. Follow applicable facility maintenance codes and manufacturer assembly specifications for torque and fit requirements on the surrounding components.