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Russell Performance 640090 Female AN O-Ring Weld Bung Adapter

Part of: Russell Performance Weld-In Bungs

Other options in this family: Russell Performance 683720 Russell Performance 683700 Russell Performance 670600 Russell Performance 670770 Russell Performance 670780

Manufacturer

Picture for manufacturer Russell Performance

Part Number

640090
4 reviews
Sale Price

$9.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Russell Performance 640090 is a female AN O-ring seal weld bung designed for fuel system applications. This precision-machined aluminum adapter provides a reliable mounting point for AN fittings in fuel rails, intake manifolds, or custom fuel system installations.

Key Features:

  • Precision machined threads ensure proper engagement with compatible AN fittings
  • Female AN O-ring boss design for secure, leak-free connections
  • Lightweight aluminum construction reduces overall system weight
  • 37-degree sealing angle provides positive seal at maximum operating pressures
  • Use with Russell fitting 660350 for complete assembly
  • Available in anodized finishes (Blue, Clear, and Black) for custom appearance

This weld bung is designed to integrate seamlessly with Russell performance hose and hose ends, making it ideal for custom fuel injection systems, fuel rails, and high-performance fuel delivery applications. The O-ring boss design ensures reliable sealing under high fuel pressures.

Products specifications

Bung Material

Aluminum

Bung Type

Universal

Cap Included

No

Fitting Attachment 1

Female threads

Flanged

Yes

Plug Included

No

Quantity

Sold individually.

Size

-6 AN

Thread

9/16" -18 SAE

Thread Size

6 AN

A/N Size

-6

Potential Risk Primary Chemical

Lead

Material

Aluminum

Thread Size

9/16 in.-18 SAE

RGL

WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

Title

Russell - Weld In Bung

Fast shipping cheapest I could find, easy to deal with, great product

Great service !! Great prices !!! And fast shipping

Very good prices and good shipping prices. found my parts cheaper then any place else. Thanks to Autoplicity for filling my order #8498 of 4/02/12 quickly and accurately. I will be back.

The item has not been delivered yet. But the email updates are great. And I found this much cheaper than elsewere.

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