NSI Industries JR100 - Reducing Washer, 1/2 in. inside diameter, 3/4 in. outside diameter, Steel, galvanized finish, 100 per pack
NSI Industries

JR100

Alternate Item Number: 80559

UPC: 639720805598

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSi Industries JR100 Reducing Washer (SKU: JR100) is a precision-engineered galvanized steel washer designed to bridge mechanical connections between components with different diameter requirements. Manufactured by NSi Industries, a trusted U.S.-based fastener supplier, this washer features a 1/2-inch inside diameter (ID) and a 3/4-inch outside diameter (OD), providing a seamless transition for fasteners, pipes, or structural components requiring size adaptation. The galvanized steel construction ensures superior corrosion resistance, making it ideal for outdoor, industrial, or high-moisture environments where rust and degradation are common concerns. Engineered for durability and reliability, the JR100 is packaged in quantities of 100, making it a cost-effective solution for bulk purchases in plumbing, HVAC, automotive, and general construction projects. Its compact design allows for easy integration into tight spaces while maintaining structural integrity. The galvanized finish meets industry standards for corrosion protection, extending the washer’s service life in demanding applications. Key applications include: - Plumbing systems where pipe diameters vary - HVAC installations requiring size transitions - Automotive and machinery assemblies - Structural connections in construction - Electrical and mechanical installations Compatible with standard fasteners, the JR100 reduces the risk of misalignment or loosening due to its precise sizing. The galvanized coating ensures long-term performance in harsh conditions, reducing maintenance costs and downtime. Whether used in new installations or repairs, this reducing washer delivers consistent, dependable results. Trust NSi Industries for fasteners that meet rigorous industry requirements.
  • Material: Galvanized steel for superior corrosion resistance
  • Dimensions: 1/2" inside diameter, 3/4" outside diameter
  • Packaging: 100 washers per pack for bulk purchasing
  • Applications: Plumbing, HVAC, automotive, construction, and mechanical assemblies
  • Finish: Galvanized coating ensures durability in harsh environments

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Finish
Galvanized
Inside Diameter
1/2 IN
Material
Steel
Outside Diameter
0.75 in
Special Features
Features: Designed to Reduce Larger Knockouts to Accept Smaller Connectors
Type
Reducing Washer
Package Dimensions (L x W x H)
3 IN x 3 IN x 3.6 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 9.144 cm
Package Weight (Imperial)
0.920 L
Package Weight (Metric)
0.417 kg
Reducing Washer, 3/4 in. inside diameter, 1 in. outside diameter, Steel, galvanized finish, 100 per pack

JR102

Reducing Washer, 3/4 in. inside diameter, 1 in. outside diameter, Steel, galvanized finish, 100 per pack
3 Inch to 1/2 Inch Reducing Washer, Galvanized Steel

WA 181

3 Inch to 1/2 Inch Reducing Washer, Galvanized Steel

Frequently Asked Questions

What is this reducing washer used for?

It is used to reduce the size of the knockout in a steel outlet box or other metal enclosure or cabinet.

How many washers are needed per application?

Two washers must be used for each application: one inside the enclosure opening and one on the outside.

What material is the reducing washer made of?

The reducing washer is made of galvanized steel.

Which product series does this specification sheet cover?

This specification sheet applies to all Reducing Washers - Galvanized Steel in the JR and R series.

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