What is the purpose of a crush washer?

A crush washer is designed to deform when tightened, creating a seal between two mating surfaces. For fuel fittings, it helps prevent leaks by filling any small imperfections between the fitting and the component it's attaching to.

Are these washers reusable?

Crush washers are typically considered single-use items. While they might appear intact after removal, they have deformed to create the seal. It's best practice to use a new washer each time a fitting is installed to ensure a leak-free connection.

What does '-12 AN' refer to?

'-12 AN' refers to the size of the fitting. The AN (Army-Navy) standard is commonly used for fluid fittings in automotive and aerospace applications. '-12' indicates a specific nominal inside diameter for the fitting and hose.

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Specifications

Brand: DeatschWerks
Part #: 6-02-0305
UPC: 887753528223

DeatschWerks -12 AN Aluminum Crush Washer (Pack of 10)

Name: DeatschWerks -12 AN Aluminum Crush Washer (Pack of 10)
Brand: DeatschWerks
SKU: deatschwerks-deatschwerks-12-an-aluminum-crush-washer-pack-of-10-t14-71643
Price: 14.75 USD
Availability: BackOrder

$14.75

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

DeatschWerks -12 AN Aluminum Crush Washer (Pack of 10). Essential for sealing fuel line fittings.

Key Features

Fits -12 AN fittings for secure fuel system connections.
Aluminum construction deforms to create a reliable seal.
Pack includes 10 crush washers for multiple applications or spares.
Designed for high-performance fuel system setups.

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

When you're working on high-performance fuel systems, the small details really matter. These DeatschWerks -12 AN aluminum crush washers are designed to create a solid seal on your fuel line fittings. They're made from aluminum, which is a good choice for this application because it's soft enough to deform and create a tight seal without damaging the fitting itself.

You get a pack of 10 washers, which is handy because these are often a one-time use item, especially when you're tightening down a fitting for the first time. Having a few spares on hand means you won't have to stop your project to run to the store if one gets lost or damaged during installation. They're specifically sized for -12 AN fittings, ensuring a proper fit for those larger fuel lines common in performance builds.