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321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12

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Unbranded · SKU: AE0247682

321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12

This 4-inch nominal pipe size spiral wound gasket is constructed with a 321 stainless steel outer wind and a resilient graphite filler, providing a reliable seal for flange connections. It is suitable for multiple pressure classes, including PN16 (approximately 232 PSI) and PN40 (approximately 580 PSI), and is rated for service up to 900°F. The gasket measures 5.1 inches in outer diameter with a 14mm (0.55 inch) bolt circle and a 3.2mm (0.13 inch) thickness. Its design ensures effective sealing for both indoor and outdoor applications across industrial piping systems.

2-3 weeks
$69.99($5.83/each)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 9-$69.99 / each
10 - 49-5%$66.49 / each
50+-10%$62.99 / each
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Technical Specifications

StandardsMeets Industry Standards
Chemical BaseGraphite
Sealant TypeGasket
Indoor/Outdoor UseBoth
PaintableNo

Product Description

Overview

This 4-inch nominal pipe size spiral wound gasket is engineered for creating robust, leak-tight seals in industrial flange connections. It is manufactured to meet recognized industry standards, ensuring consistent quality and dimensional accuracy for reliable performance in demanding piping systems. The gasket is suitable for both indoor and outdoor applications across a wide range of service conditions, providing a versatile sealing solution for maintenance and new construction projects.

Key Features

Constructed with a durable 321 stainless steel outer winding for excellent corrosion and heat resistance. Features a resilient graphite filler material that compresses to form an effective seal against uneven flange surfaces. Designed to perform across multiple pressure classes, including PN16 (approximately 232 PSI) and PN40 (approximately 580 PSI). Rated for continuous service at temperatures up to 900°F. Precise dimensions ensure proper fit and alignment on standard 4-inch flanges.

Specifications

Nominal Pipe Size: 4 Inch Outer Diameter: 5.1 inches Bolt Circle Diameter: 0.55 inches Thickness: 0.13 inches Metal Wind Material: 321 Stainless Steel Filler Material: Graphite Pressure Rating: Suitable for PN10, PN16, PN25, PN40, and PN63 classes Maximum Temperature Rating: 900°F Standards: Meets Industry Standards Chemical Base: Graphite Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No

Applications

General industrial process piping in chemical and petrochemical plants. Power generation and utility systems. Oil and gas pipeline connections. Heating, ventilation, and high-temperature ducting. Water treatment and distribution infrastructure.

Packaging This item is sold in a convenient package of 12 gaskets.

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Frequently Asked Questions

What are the key specifications of 321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12?
Key specifications for 321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12: Standards: Meets Industry Standards, Chemical Base: Graphite, Sealant Type: Gasket. See the full specification table on this page for complete details. If you need help confirming whether this product fits your application, use our AI Sourcing Assistant or submit an RFQ with your requirements.
What is the minimum order quantity and bulk pricing for 321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12?
The minimum order quantity is 1 unit(s). Unit price starts at $69.99. Volume discounts are available — see the tiered pricing table on this page for exact breakpoints. For quantities beyond what is listed, or for custom pricing on recurring orders, submit an RFQ and our team will respond within 24 hours.
What is the lead time and availability for 321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12?
This product is currently in stock and ships within 1-2 business days. Estimated lead time: 2-3 weeks. For bulk orders, lead times may vary based on quantity — request a quote for a confirmed delivery date. We can also arrange scheduled recurring shipments to prevent stockouts.
How do I get a custom quote for 321 Stainless Steel Spiral Wound Gasket, 4 Inch, Graphite Filler, Pkg Qty 12?
Click the "Request a Quote" button on this page or visit our RFQ form. Include your required quantity, delivery location, and any special requirements (specific certifications, custom packaging, recurring delivery schedule). Our sourcing team typically responds within 24 hours with pricing, confirmed lead time, and shipping options.