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NSI Industries JMSW22 - Master Seal(R) Sealing and Cushioning Washer, #12 size, 9/16 in. outside diameter, Steel, galvanized finish, 100 per pack
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NSI Industries JMSW22 Master Seal(R) Sealing and Cushioning Washer, #12 size, 9/16 in. outside diameter…

Alternate Item Number: 82377

UPC: 639720823776

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Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The NSi Industries Master Seal® Sealing and Cushioning Washer (SKU: JMSW22) is a precision-engineered galvanized steel washer designed to provide superior sealing and vibration dampening in industrial applications. Constructed from durable steel with a corrosion-resistant galvanized finish, this washer ensures long-term performance in harsh environments where moisture, dust, and mechanical stress are common concerns. With a #12 size and a 9/16-inch outside diameter, it is engineered for exact fitment in mechanical and structural assemblies, including machinery mounting, pipeline connections, and construction projects. This washer is a critical component for maintaining the integrity of electrical enclosures, conduit systems, and mechanical equipment by preventing ingress of contaminants and reducing stress from vibration. Its galvanized finish provides a protective barrier against rust and wear, making it ideal for outdoor installations or areas with high moisture content. Each pack contains 100 washers, offering an economical solution for bulk industrial needs without compromising on quality or reliability. The Master Seal® line from NSi Industries is trusted in critical infrastructure and industrial settings for its ability to deliver consistent performance under typical industrial stresses and environmental exposures. Its specific dimensions ensure compatibility with standard hardware and fittings, simplifying installation and maintenance processes. Whether used in electrical panels, HVAC systems, or structural assemblies, this washer provides a secure, weather-resistant seal and cushioning to protect sensitive components from damage. Choose the NSi Master Seal® Sealing and Cushioning Washer for applications requiring a durable, corrosion-resistant solution that enhances the longevity and reliability of your installations.
  • Precision #12 size with 9/16" outside diameter for exact fitment
  • Galvanized steel construction for superior corrosion resistance
  • Provides sealing and vibration dampening in industrial applications
  • 100 washers per pack for bulk industrial needs
  • Compatible with standard hardware and fittings

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Finish
Galvanized
Material
Steel
Outside Diameter
0.5625 in
Outside Diameter
14.2875 mm
Special Features
Features: Provides an Affordable Alternative to Pre-Assembled Construction Fasteners
Type
Sealing and Cushioning Washer
Package Dimensions (L x W x H)
3 IN x 3 IN x 2.15 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 5.461 cm
Package Weight (Imperial)
0.320 L
Package Weight (Metric)
0.145 kg
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Frequently Asked Questions

What product series do these Master Seal Washers belong to?

The Master Seal Washers are part of the JMSW and JMSWS series.

What materials are Master Seal Washers made from?

Master Seal Washers are available in Galvanized and 18-8 Stainless Steel.

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