Value Collection 31474 Vulcanized Fiber Flat Washer 1/2 in Id 25pk

Product Description

The VALUE COLLECTION 31474 is a standard flat washer made from vulcanized fiber with a plain finish. It features a 0.5000 inch inside diameter, a 0.7500 inch outside diameter, and a thickness of 0.0620 inches. Vulcanized fiber offers good electrical insulation and mechanical durability, making this washer a practical choice for applications where metal washers would create a conductive path or cause galvanic issues. These washers are sold in a package of 25 and are appropriate for use by electricians, maintenance technicians, and mechanical assemblers working in light-duty fastening applications.

This washer is suited for use in electrical assemblies, panel builds, and general mechanical fastening where a non-conductive, non-metallic washer is required. The vulcanized fiber material resists moderate mechanical stress and provides a degree of electrical isolation between fastener hardware and substrate surfaces. Typical install scenarios include terminal board assemblies, bus bar mounting, enclosure hardware, and similar low-voltage electrical or electromechanical applications where insulating hardware is specified.

Key Features

• Vulcanized fiber construction provides electrical insulation and non-conductive properties
• Inside diameter of 0.5000 inches fits standard 1/2 inch fasteners
• Outside diameter of 0.7500 inches for consistent load distribution
• Thickness of 0.0620 inches for use in tight-clearance assemblies
• Plain finish with no coating, compatible with sensitive electrical environments
• Meets MIL-I-24768 fastener standard for material compliance
• Sold in a package of 25 units

Compatibility

Designed as a standard flat washer for use with 1/2 inch fastener hardware in electrical, electromechanical, and general mechanical assemblies requiring non-conductive insulating washers per MIL-I-24768 specification.

Installation Notes

Installation is typically performed by electricians or mechanical assemblers during panel, enclosure, or equipment assembly work. Power down and de-energize all circuits before working in any electrical enclosure or assembly. Vulcanized fiber washers should not be used in high-moisture or submerged environments, as prolonged water exposure can degrade the material. Follow applicable NEC guidelines when installing hardware inside electrical enclosures or on energized components.