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304 Stainless Steel Retaining Washer, 3.39 in Bore, 0.18 in Thick, Pkg Qty 12

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Industrial · SKU: AE0253452

304 Stainless Steel Retaining Washer, 3.39 in Bore, 0.18 in Thick, Pkg Qty 12

This 304 stainless steel retaining washer is designed for high-pressure sealing applications up to 1,440 PSI. It features a 3.

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$69.99
$5.83/each(12 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$69.99
11 - 50-5%$66.49
51+-10%$62.99
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Quick Answer

How Buyers Should Evaluate 304 Stainless Steel Retaining Washer, 3.39 in Bore, 0.18 in Thick, Pkg Qty 12

This 304 stainless steel retaining washer is designed for high-pressure sealing applications up to 1,440 PSI. It features a 3. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • System of Measurement: Metric
  • Material Grade/Class: 304
  • Material: Stainless Steel

Purchase Details

  • Online price starts at $69.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 12 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

System of MeasurementMetric
Material Grade/Class304
MaterialStainless Steel
Thread SizeN
FinishN
Shaft/Bore Diameter3.39 in
Thickness0.18 in
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

The 304 Stainless Steel Retaining Washer is a precision-engineered, spiral-wound gasket designed for creating robust, leak-tight seals in high-pressure and high-temperature piping systems. Its metal-wound construction with a graphite filler provides exceptional resilience and sealing force, making it a critical component for maintaining system integrity in demanding industrial environments. This specific configuration includes an external centering ring for added stability and ease of installation.

Key Features

Constructed from corrosion-resistant 304 stainless steel for durability. Spiral-wound design with flexible graphite filler for superior sealability. External centering ring ensures proper alignment and prevents gasket blow-out. Engineered to withstand extreme pressure differentials and thermal cycling. Suitable for sealing on raised face flanges in standardized applications.

Specifications

Material Grade/Class: 304

Material

Stainless Steel Shaft/Bore Diameter: 3.39 inches Thickness: 0.18 inches Finish: Standard mill finish System of Measurement: Metric (dimensions converted to Imperial) Thread Size: Not applicable Package Quantity: 12 washers

Applications

Ideal for use in chemical and petrochemical processing plants. Suitable for power generation facilities, including steam lines. Applicable in oil and gas pipeline and refinery systems. Used in industrial heating, ventilation, and high-temperature plumbing. Designed for flange connections in pumps, valves, and heat exchangers.

Frequently Asked Questions

What are the key specifications for this retaining washer, and is it compatible with my existing metric hardware?
This washer is made from 304 stainless steel with a bore diameter of 3.39 inches and a thickness of 0.18 inches. While the product conforms to a metric standard (GB/T4622.2-2003), the provided dimensions are in Imperial units for your convenience, and the 3.39 inch bore is equivalent to a DN65 flange size, ensuring compatibility with corresponding metric piping systems.
What is the primary application or use case for this specific type of retaining washer?
This metal wound gasket is designed for high-pressure sealing applications on pipe flanges, specifically for systems rated to PN100 (approximately 1,422 PSI). Its 304 stainless steel construction with a graphite filler makes it suitable for high-temperature services up to approximately 1,500°F, commonly used in industrial piping for oil, gas, chemical, and power generation.
How is this item packaged and sold, and what is the minimum order quantity?
This retaining washer is sold in a convenient package quantity of 12 units. The packaging is designed to protect the gaskets from damage during shipping and storage, ensuring they arrive in perfect, ready-to-use condition.
304 Stainless Steel Retaining Washer, 3.39 in Bore, 0.18 in Thick, Pkg Qty 12 | Machrio