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D-Shape Metal Retaining Washer, 3.54 in Bore, 304 & Carbon Steel, Pkg Qty 8

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Industrial · SKU: AF4009119

D-Shape Metal Retaining Washer, 3.54 in Bore, 304 & Carbon Steel, Pkg Qty 8

This D-shaped retaining washer is engineered for high-pressure sealing applications up to 63 bar (approximately 914 PSI).

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$99.99
$12.50/each(8 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$99.99
11 - 50-5%$94.99
51+-10%$89.99
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Quick Answer

How Buyers Should Evaluate D-Shape Metal Retaining Washer, 3.54 in Bore, 304 & Carbon Steel, Pkg Qty 8

This D-shaped retaining washer is engineered for high-pressure sealing applications up to 63 bar (approximately 914 PSI). 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 + Carbon Steel

Purchase Details

  • Online price starts at $99.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 8 / 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 + Carbon Steel
Thread SizeN
FinishN
Shaft/Bore Diameter3.54 in
Thickness0.177 in
Product Details

Full Description

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

Overview

This D-Shape Metal Retaining Washer is engineered for critical, high-pressure sealing applications in industrial piping and vessel systems. It is specifically designed to create a secure, leak-proof seal between flanged connections, capable of withstanding pressures up to 63 bar (approximately 914 PSI). The unique D-shaped profile, combined with a dual-material construction, ensures reliable performance under thermal cycling and mechanical stress, preventing gasket blow-out and maintaining system integrity in demanding environments.

Key Features

Dual-material construction for balanced performance and cost-efficiency Integrated inner and outer retaining rings to prevent gasket collapse or extrusion D-shaped profile for secure positioning and alignment during installation Suitable for high-pressure applications up to approximately 914 PSI Designed for use with standard metric flange connections

Specifications

System of Measurement: Metric Material Grade/Class: 304

Material

Stainless Steel + Carbon Steel Thread Size: N Finish: N Shaft/Bore Diameter: 3.54 in Thickness: 0.177 in Package Quantity: 8

Applications

Sealing high-pressure flanges in chemical processing systems Connections in oil and gas pipeline infrastructure Power generation and steam system piping Industrial boiler and pressure vessel fittings Refinery and petrochemical plant maintenance

Frequently Asked Questions

What are the key specifications and materials for this D-Shape retaining washer?
This washer has a D-shaped bore diameter of 3.54 inches and a thickness of 0.177 inches. It is constructed from a combination of 304 stainless steel for the inner ring and carbon steel for the outer ring, providing a balance of corrosion resistance and strength.
What are the typical applications or use cases for this specific washer?
This D-shaped washer is designed for high-pressure sealing applications, such as in flanged pipe connections rated for PN63 (approximately 915 PSI). Its design prevents rotation, making it ideal for pumps, valves, and industrial machinery where secure, non-slip positioning is critical.
How is this product packaged for ordering, and what is the minimum quantity?
This washer is sold in a convenient package quantity of 8 pieces. This pack size is designed to fulfill common maintenance and assembly requirements, providing an efficient quantity for most industrial projects.
D-Shape Metal Retaining Washer, 3.54 in Bore, 304 & Carbon Steel, Pkg Qty 8 | Machrio