Value Collection 31461 Flat Washer Vulcanized Fiber 50 Pack

Product Description

The VALUE COLLECTION 31461 is a standard flat washer made from vulcanized fiber with a plain finish. Vulcanized fiber is a cellulose-based composite material that provides electrical insulation, light weight, and moderate mechanical strength without metallic conductivity. The washer measures 0.250 inches inside diameter, 0.437 inches outside diameter, and 0.031 inches thick. It is sized for use with 1/4-inch fasteners and is sold in packages of 50. This type of washer is commonly installed by electricians, maintenance technicians, and assembly professionals working in environments where electrical isolation between a fastener and a substrate is required.

This washer is suited for applications in electrical panels, control enclosures, printed circuit board assemblies, and light mechanical assemblies where a non-conductive, non-metallic washer is needed. The inch-measurement sizing and compliance with MIL-I-24768 make it appropriate for both industrial and military-specification assembly work. Typical applications include isolation of mounting hardware from conductive surfaces and vibration dampening in low-load fastener assemblies.

Key Features

• Vulcanized fiber construction provides electrical insulation and non-metallic, non-conductive properties
• Plain finish with no coating — compatible with applications requiring clean, uncoated surfaces
• 0.250 inch inside diameter fits standard 1/4-inch fasteners
• 0.437 inch outside diameter and 0.031 inch thickness conform to standard flat washer geometry
• Meets MIL-I-24768 fastener standard including G10 and FR-4 grades
• Sold in 50-piece packages for bench stock and small-batch assembly use

Compatibility

Designed as a standard flat washer replacement for 1/4-inch fastener applications requiring vulcanized fiber, non-conductive washers per MIL-I-24768, G10, and FR-4 specifications.

Installation Notes

Installation is typically performed by electricians or mechanical assembly technicians. De-energize and lock out any electrical panel or enclosure before installing or replacing washers in live equipment. Vulcanized fiber washers should not be over-torqued, as the material can crack or crush under excessive clamp load. Inspect washers for cracks, delamination, or moisture absorption before installation, as damaged fiber washers may lose their insulating properties.