NSI Industries JR104 - Reducing Washer, 3/4 in. inside diameter, 1-1/4 in. outside diameter, Steel, galvanized finish, 50 per pack
NSI Industries

JR104

Alternate Item Number: 80563

UPC: 639720805635

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Specification Sheet

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Minimum Qty: 50

Multiplier: 50

*Contact for lower quantities*

Overview

The NSi Industries JR104 Reducing Washer (SKU: JR104) is a precision-engineered galvanized steel washer designed for seamless transitions between different diameter components in industrial, construction, and mechanical applications. This washer features a 3/4-inch inside diameter (ID) and a 1-1/4-inch outside diameter (OD), allowing it to bridge gaps between 3/4-inch fasteners or pipes and larger mounting surfaces or structural components. The galvanized steel construction provides superior corrosion resistance, making it ideal for outdoor installations, HVAC systems, plumbing, electrical enclosures, and structural assemblies exposed to moisture or harsh environments. Key specifications include a thickness of 0.0625 inches (1/16 inch), ensuring adequate load distribution without excessive bulk. The galvanized finish meets ASTM A153 standards for zinc coating, delivering long-term protection against rust and oxidation in applications ranging from commercial buildings to industrial machinery. Each washer is manufactured in the USA by NSi Industries, a trusted name in industrial fasteners since 1958. Common applications include: - Transitioning between pipe sizes in plumbing and HVAC systems - Aligning components with different hole diameters in structural steel assemblies - Providing electrical insulation and mechanical stability in junction boxes - Serving as a spacer or load-bearing surface in mechanical assemblies The JR104 is packaged in a bulk quantity of 50 washers per pack, optimizing inventory management for contractors, maintenance teams, and OEMs. Its precise dimensions ensure a snug fit over 3/4-inch bolts or pipes while distributing clamping force evenly across the 1-1/4-inch surface. Unlike standard flat washers, the reducing design eliminates the need for multiple adapters or bushings, reducing assembly time and potential failure points. For applications requiring even larger transitions, NSi offers complementary sizes such as 1" to 3/4" (SKU 1063) or 1-1/4" to 1/2" (SKU 1064).
  • 3/4-inch inside diameter (ID) x 1-1/4-inch outside diameter (OD)
  • Galvanized steel construction with zinc coating per ASTM A153
  • 0.0625-inch thickness for balanced load distribution
  • 50 washers per pack for bulk inventory management
  • Corrosion-resistant for outdoor and harsh environment use

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Color
Galvanized
Finish
Galvanized
Inside Diameter
3/4 IN
Material
Steel
Outside Diameter
1.25 in
Size
3/4 in. ID x 1-1/4 in. OD
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 2.7 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 6.858 cm
Package Weight (Imperial)
1.110 L
Package Weight (Metric)
0.503 kg
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A reducing washer for indoors or outdoors use to reduce the size of the knockout in a steel outlet box or other metal enclosure. It is made of steel with a zinc plated finish. The washer has an inside diameter of 2.940 in and an outside diameter of 4.490 in.
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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 washer is made of galvanized steel.

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