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Beckett 3666U Bulkhead Fitting Locknut for AFG Oil Burners

Manufacturer

Picture for manufacturer Beckett

Part Number

3666U
5 reviews
Sale Price

$4.94

In Stock (7)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Beckett 3666U is a splined bulkhead fitting locknut designed specifically for use with R.W. Beckett SF/SM and AFG series residential oil burners. This essential component provides a secure, leak-proof connection between the burner assembly and the fuel line.

Key Features:

  • Splined nut design for secure fastening and easy installation
  • Compatible with 3/8-inch gas/fuel hose connections
  • Integral locking collar prevents loosening during operation
  • Precision-engineered for R.W. Beckett AFG, SF, and SM series burners
  • Durable construction ensures long-lasting performance

This locknut is a critical replacement component that ensures proper fuel delivery and maintains burner efficiency. The splined design allows for proper torque application and creates a reliable seal that helps prevent fuel leaks and maintains safe burner operation in residential heating systems.

awesome

Good pricing and reasonably fast delivery. The parts came in multiple packages over several days, which I wasn't aware of, so initially I feared things hadn't been delivered...but after a couple of days, everything arrived and was as expected. Overall, will shop here again.

Great price

Great experience

Found the part I needed , in order to finish my project ,without driving to town and going through hundreds of fittings to find the right one.

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