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Industrial · SKU: PA0725
304 Stainless Steel Retaining Washer, 3.15 in Bore, 0.177 in Thick, Pkg Qty 6
This 304 stainless steel retaining washer is designed for high-strength fastening and sealing applications in demanding environments. It features a 3.
Volume Pricing - Buy More, Save More
| Quantity | Discount | Unit Price |
|---|---|---|
| 1 - 10 | - | $99.99 |
| 11 - 50 | -5% | $94.99 |
| 51+ | -10% | $89.99 |
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Quick Answer
How Buyers Should Evaluate 304 Stainless Steel Retaining Washer, 3.15 in Bore, 0.177 in Thick, Pkg Qty 6
This 304 stainless steel retaining washer is designed for high-strength fastening and sealing applications in demanding environments. 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: Imperial
- Material Grade/Class: 304
- Material: Stainless Steel
Purchase Details
- Online price starts at $99.99.
- Minimum order quantity: 1 unit.
- Pack quantity: 6 / 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 Measurement | Imperial |
| Material Grade/Class | 304 |
| Material | Stainless Steel |
| Thread Size | N |
| Finish | N |
| Shaft/Bore Diameter | 3.15 in |
| Thickness | 0.177 in |
Full Description
Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.
Overview
The D-Type Metal Winding Gasket with Inner and Outer Rings is a high-performance sealing solution engineered for critical flange connections in piping and pressure vessel systems. It conforms to the HG/T20631-2009 standard, ensuring compatibility and reliability for industrial applications. This specific configuration is designed for a 3-inch (DN80) nominal bore, 150LB pressure class flange, providing a robust metal-to-metal seal capable of withstanding challenging service conditions including high pressure, temperature extremes, and thermal cycling.
Key Features
Engineered with a resilient graphite filler wound between multiple metal layers for an exceptional seal. Features integral inner and outer containment rings for increased stability and gasket compression control. Constructed from 304 stainless steel for the winding strip and both rings, offering excellent corrosion resistance. The graphite filler provides reliable sealing across a wide temperature range and is suitable for many industrial media. Designed to prevent buckling and blow-out under high pressure and temperature fluctuations. Precise dimensional compliance ensures a proper fit and seal on standard 3-inch, 150LB flanges.
Specifications
Gasket Type: D-Type (Wound with Inner & Outer Rings) Nominal Pipe Size: 3 inch (DN80) Pressure Class: 150LB Standard: HG/T20631-2009 Material Construction: 304 Stainless Steel / Flexible Graphite / 304 Stainless Steel Inner Ring Material: 304 Stainless Steel Outer Ring Material: 304 Stainless Steel Winding Strip Material: 304 Stainless Steel Filler Material: Flexible Graphite Outside Diameter: 5.37 inches Inside Diameter: 3.19 inches Overall Thickness: 0.177 inches Quantity: 1 piece
Applications
Sealing chemical and petrochemical processing pipelines and vessels. High-pressure steam lines and power generation systems. Refinery and offshore oil & gas flange connections. Heat exchangers, pumps, and valve bonnets. Any application requiring a durable, pressure-resistant seal for ANSI/ASME B16.5 flanges.