Value Collection 31475 Flat Washer Vulcanized Fiber 1/2 in Id 25pk

Product Description

The VALUE COLLECTION 31475 is a standard flat washer made from vulcanized fiber with a plain finish. It features an inside diameter of 0.5 inches, an outside diameter of 0.875 inches, and a thickness of 0.062 inches. Vulcanized fiber offers a non-metallic, electrically insulating alternative to steel washers, making this part suitable where metal contact must be avoided or where light cushioning between mating surfaces is required. Licensed trades and maintenance technicians use these washers in electrical, mechanical, and general fastening applications where standard hardware is specified.

This washer is used in applications requiring a non-conductive, non-magnetic spacer or load-distributing element under a bolt head or nut. Common install scenarios include electrical enclosures, panel assemblies, and light mechanical assemblies where insulation from a fastener contact point is needed. The 0.5-inch ID fits standard 1/2-inch fasteners. Sold in a package of 25 units, this washer is well suited for bench stock, maintenance kits, or small-batch repair work.

Key Features

• Vulcanized fiber construction provides electrical insulation and non-magnetic properties
• Inside diameter of 0.5 inches fits standard 1/2-inch fasteners
• Outside diameter of 0.875 inches for broad load distribution
• Thickness of 0.062 inches for consistent, uniform spacing
• Plain finish with no coating — no corrosion-inhibitor residue on contact surfaces
• Meets MIL-I-24768 and 27 GEE-F (G10/FR-4) fastener standards
• Sold in a package of 25 for convenient stocking and kitting

Compatibility

Designed as a standard flat washer for use with 1/2-inch fasteners in applications conforming to MIL-I-24768 and 27 GEE-F (G10/FR-4) specifications.

Installation Notes

Vulcanized fiber washers are installed by hand or with standard hand tools alongside the fastener assembly — no special tooling is required. Power down and de-energize any electrical assembly before installing or removing hardware in energized enclosures. Avoid over-torquing fasteners, as vulcanized fiber can compress or crack under excessive clamping load. Follow applicable NEC or equipment manufacturer guidelines for fastener torque in electrical assemblies.