What is the purpose of a crush washer?

A crush washer is designed to deform slightly when tightened, creating a seal between two mating surfaces. It's used when a port doesn't accommodate an O-ring, ensuring a leak-free connection for fittings with a straight thread.

What size are these crush washers?

These crush washers are sized for -3 AN fittings. This is a common size for many automotive fluid and vacuum lines.

What material are these crush washers made from?

These crush washers are constructed from aluminum, which is suitable for sealing applications where a soft metal is needed to conform to the fitting and port.

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Specifications

Brand: Vibrant
Part #: 20923
UPC: 690092154042

Vibrant -3AN Crush Washers - Pack of 10

Name: Vibrant -3AN Crush Washers - Pack of 10
Brand: Vibrant
Price: 10.79 USD
Availability: InStock

$10.79

On Backorder — Expected to ship by Apr 5, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Vibrant -3 AN Crush Washers - Pack of 10. Seals straight thread fittings where O-rings won't fit.

Key Features

Fits Vibrant Performance AN adapter fittings.
Seals straight thread ports where O-rings cannot be used.
Made from aluminum.
Comes in a pack of 10.
Features a -3 AN size.
Backed by a 30-day limited warranty.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

These Vibrant Performance aluminum crush washers are a simple but essential part when you're working with adapter fittings that have a straight thread. Sometimes, the port you're connecting to doesn't have a groove for an O-ring, and that's exactly where these come in handy. They're designed to crush slightly when tightened, creating a solid seal to prevent leaks.

This pack comes with ten -3 AN size crush washers, made from aluminum. They're a perfect match for Vibrant Performance AN adapter fittings, ensuring a good seal on your engine components. Having a few of these on hand is always a good idea for those times you need a reliable seal without an O-ring.