Value Collection 31459 Vulcanized Fiber Flat Washer 50 Pack

Product Description

The VALUE COLLECTION 31459 is a standard flat washer made from vulcanized fiber with a plain finish. It features an inside diameter of 0.218 inches, an outside diameter of 0.562 inches, and a thickness of 0.031 inches. Vulcanized fiber is a non-metallic, electrically insulating material that resists moisture and mild solvents, making it suitable for applications where metal washers could cause galvanic corrosion or electrical conductivity issues. This washer is sized for use with number 10 or similar fasteners and is sold in packs of 50.

This washer is used in light mechanical assemblies, electrical panel fabrication, and equipment requiring non-conductive or non-corrosive spacers and load-distribution washers. Typical installers include electricians, electromechanical assemblers, and maintenance technicians working on control panels, enclosures, or instrumentation. It meets fastener standard MIL-I-24768 and 27 GEE-F (G10; FR-4), making it appropriate for defense, industrial, and commercial assembly applications where fiber-based insulating hardware is specified.

Key Features

• Vulcanized fiber construction provides electrical insulation and non-metallic, non-conductive properties
• Plain finish with no coating or treatment, suitable for direct assembly without prep
• Meets MIL-I-24768 and 27 GEE-F (G10; FR-4) fastener standards
• Inside diameter of 0.218 inches fits standard number 10 fastener sizes
• Sold in packs of 50, minimum order quantity of 1 pack

Compatibility

Designed as a standard flat washer for use with fasteners requiring a 0.218-inch inside diameter and 0.562-inch outside diameter bearing surface, per inch-system dimensional standards.

Installation Notes

Installation is performed by hand or with standard assembly tools. Vulcanized fiber washers should not be subjected to high compressive torque loads that could crush or deform the material. Keep washers dry during storage, as prolonged moisture exposure can affect dimensional stability. No special certifications are required for installation, though applications in electrical enclosures should follow applicable NEC guidelines for insulating hardware.